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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2016	Jul. 29, 2016
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2016
Entity Registrant Name	BankFinancial CORP
Entity Central Index Key	0001303942
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		19,542,026
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets
Cash and due from other financial institutions	$ 11,509	$ 13,192
Interest-bearing deposits in other financial institutions	74,048	46,185
Cash and cash equivalents	85,557	59,377
Securities, at fair value	105,698	114,753
Loans receivable, net of allowance for loan losses: June 30, 2016, $8,915 and December 31, 2015, $9,691	1,207,553	1,232,257
Other Real Estate Owned At Carrying Value	5,373	7,011
Stock in Federal Home Loan Bank, at cost	6,257	6,257
Premises and equipment, net	32,021	32,726
Accrued interest receivable	4,000	4,226
Core deposit intangible	1,040	1,305
Bank owned life insurance	22,484	22,387
Deferred Tax Assets, Net, Current	25,187	26,695
Other assets	4,661	5,449
Total assets	1,499,831	1,512,443
Deposits
Noninterest-bearing	231,928	254,830
Interest-bearing	1,036,674	958,089
Total deposits	1,268,602	1,212,919
Borrowings	1,469	64,318
Advance payments by borrowers taxes and insurance	12,421	11,528
Accrued interest payable and other liabilities	10,632	11,314
Total liabilities	1,293,124	1,300,079
Commitments and contingent liabilities
Stockholders' equity:
Preferred Stock, $0.01 par value, 25,000,000 shares authorized, none issued or outstanding	0	0
Common Stock, $0.01 par value, 100,000,000 shares authorized; 19,678,697 shares issued at June 30, 2016 and 20,297,317 issued at December 31, 2015	197	203
Additional paid-in capital	177,995	184,797
Retained earnings (deficit)	36,845	36,114
Unearned Employee Stock Ownership Plan shares	(8,811)	(9,297)
Accumulated other comprehensive income	481	547
Total stockholders' equity	206,707	212,364
Total liabilities and stockholders' equity	$ 1,499,831	$ 1,512,443

Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Allowance for loan losses	$ 8,915	$ 9,691
Preferred Stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred Stock, shares authorized	25,000,000	25,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Stock, par value (usd per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	100,000,000	100,000,000
Common Stock, shares issued	19,678,697	20,297,317

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest and dividend income
Loans, including fees	$ 12,099	$ 11,836	$ 24,446	$ 23,659
Securities	307	257	621	584
Other	175	100	273	161
Total interest income	12,581	12,193	25,340	24,404
Interest expense
Deposits	950	689	1,737	1,373
Borrowings	2	2	71	4
Total interest expense	952	691	1,808	1,377
Net interest income	11,629	11,502	23,532	23,027
Provision for (recovery of) loan losses	1,315	(488)	825	(1,212)
Net interest income	10,314	11,990	22,707	24,239
Noninterest income
Deposit service charges and fees	541	532	1,108	997
Other fee income	505	601	1,000	1,136
Insurance commissions and annuities income	72	86	127	149
Gain on sale of loans, net	3	28	21	55
Gain on Sale of Securities, Net	0	0	46	0
Loss on Disposition of Property Plant Equipment	0	(1)	0	(1)
Loan servicing fees	75	96	148	186
Amortization and impairment of servicing assets	(37)	(32)	(68)	(57)
Bank Owned Life Insurance Income	46	45	97	94
Trust	165	183	325	357
Other	167	151	327	309
Total noninterest income	1,537	1,689	3,131	3,225
Noninterest expense
Compensation and benefits	5,713	5,278	11,706	10,859
Office occupancy and equipment	1,635	1,670	3,282	3,365
Advertising and public relations	252	227	474	571
Information technology	699	657	1,423	1,296
Supplies, telephone, and postage	297	385	673	796
Amortization of intangibles	129	136	265	278
Nonperforming asset management	127	108	211	198
Operations of other real estate owned	149	92	525	446
FDIC insurance premiums	236	262	453	497
Other	1,269	1,216	2,424	2,238
Total noninterest expense	10,506	10,031	21,436	20,544
Income before income taxes	1,345	3,648	4,402	6,920
Income tax expense	514	1,424	1,667	2,710
Net income	$ 831	$ 2,224	$ 2,735	$ 4,210
Basic earnings per common share (usd per share)	$ 0.04	$ 0.11	$ 0.14	$ 0.21
Diluted earnings per common share (usd per share)	$ 0.04	$ 0.11	$ 0.14	$ 0.21
Weighted average common shares outstanding (shares)	19,130,118	20,009,358	19,279,330	20,138,045
Diluted weighted average common shares outstanding (shares)	19,130,435	20,013,573	19,279,642	20,142,205

Consolidated Statements Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income	$ 831	$ 2,224	$ 2,735	$ 4,210
Unrealized holding gain (loss) arising during the period	40	128	62	210
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	16	50	24	80
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(24)	(78)	(38)	(130)
Other than Temporary Impairment Losses, Investments, Reclassification Adjustment of Noncredit Portion Included in Net Income, Availabe-for-sale Securities, before Tax	0	0	(46)	0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	0	0	18	0
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, Net of Tax, Portion Attributable to Parent, Available-for-sale Securities	0		(28)
Other Comprehensive Income (Loss), Net of Tax	(24)	(78)	(66)	(130)
Comprehensive income (loss)	$ 807	$ 2,146	$ 2,669	$ 4,080

Consolidated Statements of Changes In Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Unearned Employee Stock Ownership Plan Shares	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2014	$ 216,121	$ 211	$ 193,845	$ 31,584	$ (10,276)	$ 757
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,210	0	0	4,210	0	0
Other comprehensive income, net of tax effects	(130)	0	0	0	0	(130)
Payments for Repurchase of Common Stock	(7,388)	6	7,382
Nonvested stock awards-stock-based compensation expense	52	0	52	0	0	0
Cash dividends declared on common stock (2015: $0.08, 2016: $0.10, per share)		0
ESOP shares earned	571		86	0	485	0
Ending Balance at Jun. 30, 2015	211,748	205	186,601	34,106	(9,791)	627
Beginning Balance at Dec. 31, 2015	212,364	203	184,797	36,114	(9,297)	547
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,735	0	0	2,735	0	0
Other comprehensive income, net of tax effects	(66)	0	0	0	0	(66)
Payments for Repurchase of Common Stock	(7,673)	6	7,667
Nonvested stock awards-stock-based compensation expense	768	0	768	0	0	0
Cash dividends declared on common stock (2015: $0.08, 2016: $0.10, per share)	2,004			2,004
ESOP shares earned	583	0	97	0	486	0
Ending Balance at Jun. 30, 2016	$ 206,707	$ 197	$ 177,995	$ 36,845	$ (8,811)	$ 481

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Common Stock, Dividends, Per Share, Declared	$ 0.10	$ 0.08
Stock Repurchased and Retired During Period, Shares	618,620	600,000,000

Consolidated Statements of Cash Flow - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities
Net income	$ 2,735	$ 4,210
Adjustments to reconcile to net loss to net cash from operating activities
Provision for (recovery of) loan losses	825	(1,212)
ESOP shares earned	583	571
Stock-based compensation expense	768	52
Depreciation and amortization	1,872	1,835
Amortization of premiums and discounts on securities and loans	(77)	(151)
Amortization Of Intangibles	265	278
Amortization and impairment of servicing assets	68	57
Net change in net deferred loan origination costs	(37)	(322)
Net loss on sale of other real estate owned	0	(80)
Net gain on sale of loans	(21)	(55)
Loans originated for sale	(503)	(2,324)
Proceeds from sale of loans	524	2,379
REO valuation adjustments	129	236
Net change in:
Accrued interest receivable	226	41
Earnings on bank owned life insurance	(97)	(94)
Other assets	1,955	3,999
Accrued interest payable and other liabilities	(682)	(270)
Net cash from operating activities	8,487	9,151
Gain on Sale of Securities, Net	(46)	0
Loss on Disposition of Property Plant Equipment	0	(1)
Securities
Proceeds from maturities	38,523	40,011
Proceeds from principal repayments	2,263	4,491
Proceeds from Sale of Available-for-sale Securities	46	0
Purchases of securities	(31,857)	(22,702)
Loans receivable
Increase (Decrease) in Participation Liabilities	0	3,350
Principal payments on loans receivable	249,183	230,146
Proceeds from Sale of Loans Receivable	14,746	0
Originated for investment	(240,574)	(218,045)
Proceeds from sale of other real estate owned	1,630	1,830
Purchases of premises and equipment, net	(317)	(282)
Net cash from (used in) investing activities	33,643	38,799
Cash flows from financing activities
Net change in deposits	55,683	(11,487)
Net change in borrowings	(62,849)	(9,882)
Net change in advance payments by borrowers for taxes and insurance	893	340
Payments for Repurchase of Common Stock	(7,673)	(7,388)
Payments of Ordinary Dividends, Common Stock	(2,004)	(1,688)
Net cash used in financing activities	(15,950)	(30,105)
Net change in cash and cash equivalents	26,180	17,845
Beginning cash and cash equivalents	59,377	59,581
Ending cash and cash equivalents	85,557	77,426
Supplemental disclosures of cash flow information:
Interest paid	1,710	1,413
Income taxes paid	175	26
Loans transferred to other real estate owned	$ 121	$ 1,167

Summary of Significant Accounting Policies (Notes)	6 Months Ended
Summary of Significant Accounting Policies (Notes)	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Basis of Presentation: BankFinancial Corporation, a Maryland corporation headquartered in Burr Ridge, Illinois, is the owner of all of the issued and outstanding capital stock of BankFinancial, F.S.B. (the “Bank”). The interim unaudited consolidated financial statements include the accounts of and transactions of BankFinancial Corporation, the Bank, and the Bank’s wholly-owned subsidiaries, Financial Assurance Services, Inc. and BF Asset Recovery Corporation (collectively, “the Company”), and reflect all normal and recurring adjustments that are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. All significant intercompany accounts and transactions have been eliminated. The results of operations for the three- and six-month periods ended June 30, 2016 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2016. Certain information and note disclosures normally included in financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. Use of Estimates: To prepare financial statements in conformity with GAAP, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ. Reclassifications: Certain reclassifications have been made in the prior period’s financial statements to conform them to the current period’s presentation. These unaudited consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, as filed with the Securities and Exchange Commission. Recent Accounti

Earnings Per Share (Notes)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

Amounts reported in earnings per share reflect earnings available to common stockholders for the period divided by the weighted average number of shares of common stock outstanding during the period, exclusive of unearned ESOP shares and unvested restricted stock shares. Stock options and restricted stock are regarded as potential common stock and are considered in the diluted earnings per share calculations to the extent that they would have a dilutive effect if converted to common stock.



	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Net income available to common stockholders	$	831		$	2,224		$	2,735		$	4,210
Average common shares outstanding	19,827,581			20,811,856			19,991,561			20,956,110
Less:
Unearned ESOP shares	(694,773		)	(792,816		)	(706,941		)	(804,864		)
Unvested restricted stock shares	(2,690		)	(9,682		)	(5,290		)	(13,201		)
Weighted average common shares outstanding	19,130,118			20,009,358			19,279,330			20,138,045
Add - Net effect of dilutive unvested restricted stock	317			4,215			312			4,160
Diluted weighted average common shares outstanding	19,130,435			20,013,573			19,279,642			20,142,205
Basic earnings per common share	$	0.04		$	0.11		$	0.14		$	0.21
Diluted earnings per common share	$	0.04		$	0.11		$	0.14		$	0.21
Number of antidilutive stock options excluded from the diluted earnings per share calculation	536,459			—			536,459			—
Weighted average exercise price of anti-dilutive option shares	$	12.99		$	—		$	12.99		$	—

Securities (Notes)

6 Months Ended

Jun. 30, 2016

Investments, Debt and Equity Securities [Abstract]

SECURITIES

The fair value of securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income are shown below.



	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
June 30, 2016
Certificates of deposit	$	81,376	$	—	$	—		$	81,376
Equity mutual fund	500		17		—			517
Mortgage-backed securities - residential	16,677		762		—			17,439
Collateralized mortgage obligations - residential	6,345		22		(21		)	6,346
SBA-guaranteed loan participation certificates	20		—		—			20
	$	104,918	$	801	$	(21	)	$	105,698
December 31, 2015
Certificates of deposit	$	87,901	$	—	$	—		$	87,901
Equity mutual fund	500		7		—			507
Mortgage-backed securities - residential	18,330		880		(30		)	19,180
Collateralized mortgage obligations - residential	7,111		41		(10		)	7,142
SBA-guaranteed loan participation certificates	23		—		—			23
	$	113,865	$	928	$	(40	)	$	114,753

The mortgage-backed securities and collateralized mortgage obligations reflected in the preceding table were issued by U.S. government-sponsored entities or agencies, Freddie Mac, Fannie Mae and Ginnie Mae, and are obligations which the government has affirmed its commitment to support. All securities reflected in the preceding table were classified as available-for-sale at June 30, 2016 and December 31, 2015.

The amortized cost and fair values of securities by contractual maturity are shown below. Securities not due at a single maturity date are shown separately. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.



	June 30, 2016
	Amortized Cost		Fair Value
Due in one year or less	$	81,376	$	81,376
Equity mutual fund	500		517
Mortgage-backed securities - residential	16,677		17,439
Collateralized mortgage obligations - residential	6,345		6,346
SBA-guaranteed loan participation certificates	20		20
	$	104,918	$	105,698

Sales of securities were as follows:



	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Proceeds	$	—	$	—	$	46	$	—
Gross gains	—		—		46		—
Gross losses	—		—		—		—

Securities with unrealized losses not recognized in income are as follows:



	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
June 30, 2016
Collateralized mortgage obligations - residential	$	3,216	$	(13	)	$	1,171	$	(8	)	$	4,387	$	(21	)

December 31, 2015
Mortgage-backed securities - residential	$	—	$	—		$	1,724	$	(30	)	$	1,724	$	(30	)
Collateralized mortgage obligations - residential	—		—			1,299		(10		)	1,299		(10		)
	$	—	$	—		$	3,023	$	(40	)	$	3,023	$	(40	)

The Company evaluates marketable investment securities with significant declines in fair value on a quarterly basis to determine whether they should be considered other-than-temporarily impaired under current accounting guidance, which generally provides that if a marketable security is in an unrealized loss position, whether due to general market conditions or industry or issuer-specific factors, the holder of the securities must assess whether the impairment is other-than-temporary.

Certain collateralized mortgage obligations that the Company holds in its investment portfolio were in an unrealized loss position at June 30, 2016, but the unrealized losses were not considered significant under the Company’s impairment testing methodology. In addition, the Company does not intend to sell these securities, and it is likely that the Company will not be required to sell these securities before their anticipated recovery occurs.

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References + Details

Loans Receivable (Notes)

6 Months Ended

Jun. 30, 2016

Receivables [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

Loans receivable are as follows:



	June 30, 2016			December 31, 2015
One-to-four family residential real estate	$	147,876		$	159,501
Multi-family mortgage	504,158			506,026
Nonresidential real estate	191,685			226,735
Construction and land	1,767			1,313
Commercial loans	84,951			79,516
Commercial leases	282,629			265,405
Consumer	1,744			1,831
	1,214,810			1,240,327
Net deferred loan origination costs	1,658			1,621
Allowance for loan losses	(8,915		)	(9,691		)
Loans, net	$	1,207,553		$	1,232,257

The following tables present the balance in the allowance for loan losses and the loans receivable by portfolio segment and based on impairment method:



	Allowance for loan losses						Loan Balances
	Individually evaluated for impairment		Collectively evaluated for impairment		Total		Individually evaluated for impairment		Collectively evaluated for impairment		Total
June 30, 2016
One-to-four family residential real estate	$	—	$	1,321	$	1,321	$	3,210	$	144,666	$	147,876
Multi-family mortgage	54		3,430		3,484		1,633		502,525		504,158
Nonresidential real estate	27		2,344		2,371		751		190,934		191,685
Construction and land	—		53		53		—		1,767		1,767
Commercial loans	—		645		645		—		84,951		84,951
Commercial leases	—		1,010		1,010		—		282,629		282,629
Consumer	—		31		31		—		1,744		1,744
	$	81	$	8,834	$	8,915	$	5,594	$	1,209,216	1,214,810
Net deferred loan origination costs											1,658
Allowance for loan losses											(8,915		)
Loans, net											$	1,207,553



	Allowance for loan losses						Loan Balances
	Individually evaluated for impairment		Collectively evaluated for impairment		Total		Individually evaluated for impairment		Collectively evaluated for impairment		Total
December 31, 2015
One-to-four family residential real estate	$	—	$	1,704	$	1,704	$	2,672	$	156,829	$	159,501
Multi-family mortgage	41		3,569		3,610		2,879		503,147		506,026
Nonresidential real estate	3		2,579		2,582		2,099		224,636		226,735
Construction and land	—		43		43		—		1,313		1,313
Commercial loans	—		654		654		—		79,516		79,516
Commercial leases	—		1,073		1,073		—		265,405		265,405
Consumer	—		25		25		—		1,831		1,831
	$	44	$	9,647	$	9,691	$	7,650	$	1,232,677	1,240,327
Net deferred loan origination costs											1,621
Allowance for loan losses											(9,691		)
Loans, net											$	1,232,257

Activity in the allowance for loan losses is as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Beginning balance	$	9,416		$	11,576		$	9,691		$	11,990
Loans charged off:
One-to-four family residential real estate	(355		)	(99		)	(407		)	(202		)
Multi-family mortgage	(6		)	(161		)	(51		)	(180		)
Nonresidential real estate	(1,657		)	(252		)	(1,660		)	(263		)
Commercial loans	—			—			—			(98		)
Consumer	(2		)	(4		)	(18		)	(8		)
	(2,020		)	(516		)	(2,136		)	(751		)
Recoveries:
One-to-four family residential real estate	6			219			87			279
Multi-family mortgage	9			4			146			8
Nonresidential real estate	161			9			161			25
Construction and land	—			—			35			6
Commercial loans	28			6			105			463
Commercial leases	—			—			—			1
Consumer	—			—			1			1
	204			238			535			783
Net recoveries (charge-offs)	(1,816		)	(278		)	(1,601		)	32
Provision for (recovery of) loan losses	1,315			(488		)	825			(1,212		)
Ending balance	$	8,915		$	10,810		$	8,915		$	10,810

The following tables present the recorded investment in nonaccrual loans and loans past due over 90 days still on accrual by class of loans:



	Loan Balance		Recorded Investment		Loans Past Due Over 90 Days, Still Accruing
June 30, 2016
One-to-four family residential real estate	$	2,881	$	2,433	$	—
One-to-four family residential real estate – non owner occupied	92		192		—
Multi-family mortgage - Illinois	1,074		1,021		—
Nonresidential real estate	785		754		—
Land	828		—		828
	$	5,660	$	4,400	$	828
December 31, 2015
One-to-four family residential real estate	$	2,704	$	2,263	$	—
One-to-four family residential real estate – non owner occupied	92		192		—
Multi-family mortgage - Illinois	829		821		—
Nonresidential real estate	324		296		—
	$	3,949	$	3,572	$	—

Nonaccrual loans and impaired loans are defined differently. Some loans may be included in both categories, and some may only be included in one category. Nonaccrual loans include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans.

The Company’s reserve for uncollected loan interest was $238,000 and $181,000 at June 30, 2016 and December 31, 2015, respectively. When a loan is on nonaccrual status and the ultimate collectability of the total principal of an impaired loan is in doubt, all payments are applied to principal under the cost recovery method. Alternatively, when a loan is on non-accrual status but there is doubt concerning only the ultimate collectability of interest, contractual interest is credited to interest income only when received, under the cash basis method pursuant to the provisions of FASB ASC 310–10, as applicable. In all cases, the average balances are calculated based on the month–end balances of the financing receivables within the period reported pursuant to the provisions of FASB ASC 310–10, as applicable.

The following tables present the aging of the recorded investment of loans at June 30, 2016 by class of loans:



	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Loans Not Past Due		Total
One-to-four family residential real estate loans	$	94	$	299	$	2,022	$	2,415	$	103,167	$	105,582
One-to-four family residential real estate loans – non-owner occupied	2		4		192		198		41,304		41,502
Multi-family mortgage - Illinois	—		—		1,020		1,020		298,492		299,512
Multi-family mortgage - Other	—		—		—		—		199,773		199,773
Nonresidential real estate	—		—		754		754		187,802		188,556
Construction	—		—		—		—		537		537
Land	—		—		842		842		398		1,240
Commercial loans:
Regional commercial banking	—		—		—		—		35,121		35,121
Health care	—		—		—		—		27,726		27,726
Direct commercial lessor	—		—		—		—		22,381		22,381
Commercial leases:
Investment rated commercial leases	121		—		—		121		200,115		200,236
Other commercial leases	—		—		—		—		83,999		83,999
Consumer	—		—		—		—		1,751		1,751
	$	217	$	303	$	4,830	$	5,350	$	1,202,566	$	1,207,916

The following tables present the aging of the recorded investment of loans at December 31, 2015 by class of loans:



	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Loans Not Past Due		Total
One-to-four family residential real estate loans	$	2,000	$	572	$	1,997	$	4,569	$	109,893	$	114,462
One-to-four family residential real estate loans – non-owner occupied	299		164		192		655		43,557		44,212
Multi-family mortgage - Illinois	651		283		821		1,755		312,620		314,375
Multi-family mortgage - Other	—		—		—		—		188,178		188,178
Nonresidential real estate	—		—		296		296		223,018		223,314
Construction	—		—		—		—		21		21
Land	—		—		—		—		1,279		1,279
Commercial loans:
Regional commercial banking	4		150		—		154		29,890		30,044
Health care	—		—		—		—		31,862		31,862
Direct commercial lessor	—		—		—		—		17,873		17,873
Commercial leases:
Investment rated commercial leases	50		363		—		413		170,859		171,272
Other commercial leases	—		—		—		—		95,800		95,800
Consumer	21		—		—		21		1,819		1,840
	$	3,025	$	1,532	$	3,306	$	7,863	$	1,226,669	$	1,234,532

The Company evaluates loan extensions or modifications in accordance with FASB ASC 310–40 with respect to the classification of the loan as a Troubled Debt Restructuring ("TDR"). In general, if the Company grants a loan extension or modification to a borrower for other than an insignificant period of time that includes a below–market interest rate, principal forgiveness, payment forbearance or other concession intended to minimize the economic loss to the Company, the loan extension or loan modification is classified as a TDR. In cases where borrowers are granted new terms that provide for a reduction of either interest or principal then due and payable, management measures any impairment on the restructured loan in the same manner as for impaired loans as noted above.

The Company had $419,000 of TDRs at June 30, 2016, compared to $2.7 million at December 31, 2015. No specific valuation reserves were allocated to those loans at June 30, 2016 and December 31, 2015. The Company had no outstanding commitments to borrowers whose loans were classified as TDRs at either date. During the first quarter of 2016, six loans totaling $1.5 million were declassified as TDRs as they successfully met the regulatory criteria to be removed from TDR status.

The following table presents loans classified as TDRs:



	June 30, 2016		December 31, 2015
One-to-four family residential real estate	$	187	$	1,385
Multi-family mortgage	—		1,119
Troubled debt restructured loans – accrual loans	187		2,504
One-to-four family residential real estate	232		174
Troubled debt restructured loans – nonaccrual loans	232		174
Total troubled debt restructured loans	$	419	$	2,678

During the six months ending June 30, 2016 and 2015, the terms of certain loans were modified and classified as TDRs. The modification of the terms of such loans included one or a combination of the following: a reduction of the stated interest rate of the loan; an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; or a permanent reduction of the recorded investment in the loan. There was no new TDR activity for the three months ending June 30, 2016 and 2015.

The following tables present TDR activity:



	Six Months Ended June 30,
	2016					2015
	Number of loans	Pre- Modification outstanding recorded investment		Post- Modification outstanding recorded investment		Number of loans	Pre- Modification outstanding recorded investment		Post- Modification outstanding recorded investment
One-to-four family residential real estate	1	$	63	$	63	1	$	63	$	63



	Due to reduction in interest rate		Due to extension of maturity date		Due to permanent reduction in recorded investment		Total
For the Six Months Ended June 30, 2016
One-to-four family residential real estate	$	—	$	63	$	—	$	63
For the Six Months Ended June 30, 2015
One-to-four family residential real estate	$	—	$	63	$	—	$	63

The TDRs described above had no impact on interest income, resulted in no change to the allowance for loan losses allocated and resulted in no charge-offs for the six months ended June 30, 2016. The TDRs had no material impact on interest income, resulted in no change to the allowance for loan losses allocated and resulted in no charge-offs for the six months ended June 30, 2015.

The following table presents TDRs for which there was a payment default during the six months ended June 30, 2016 and 2015 within twelve months following the modification.



	2016			2015
	Number of loans	Recorded investment		Number of loans	Recorded investment
One-to-four family residential real estate	3	$	104	2	$	77

A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms.

The TDRs for which there was a payment default resulted in no change to the allowance for loan losses allocated and resulted in no charge-offs during the six months ended June 30, 2016 and 2015.

There were certain other loan modifications during the three and six months ended June 30, 2016 and 2015 that did not meet the definition of a TDR. These loans had a total recorded investment of $255,000 and $2.3 million at June 30, 2016 and 2015, respectively. The modification of these loans involved either a modification of the terms of a loan to borrowers who were not experiencing financial difficulties or a delay in a payment that was considered to be insignificant.

In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under the Company’s internal underwriting policy.

The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, including current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes loans individually by classifying the loans based on credit risk. This analysis includes non-homogeneous loans, such as commercial and commercial real estate loans. This analysis is performed on a monthly basis. The Company uses the following definitions for risk ratings:

Special Mention. A Special Mention asset has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date. Special Mention assets are not adversely classified and do not expose an institution to sufficient risk to warrant adverse classification.

Substandard. Loans categorized as Substandard continue to accrue interest, but exhibit a well-defined weakness or weaknesses that may jeopardize the liquidation of the debt. The loans continue to accrue interest because they are well secured and collection of principal and interest is expected within a reasonable time. The risk rating guidance published by the Office of the Comptroller of the Currency clarifies that a loan with a well-defined weakness does not have to present a probability of default for the loan to be rated Substandard, and that an individual loan’s loss potential does not have to be distinct for the loan to be rated Substandard.

Nonaccrual. An asset classified Nonaccrual has all the weaknesses inherent in one classified Substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The loans were placed on nonaccrual status.

Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered “Pass” rated loans.

As of June 30, 2016, based on the most recent analysis performed, the risk categories of loans by class of loans are as follows:



	Pass		Special Mention		Substandard		Nonaccrual		Total
One-to-four family residential real estate loans	$	103,885	$	—	$	335	$	1,854	$	106,074
One-to-four family residential real estate loans – non-owner occupied	41,397		213		—		192		41,802
Multi-family mortgage loans - Illinois	299,839		334		2,025		1,024		303,222
Multi-family mortgage loans - Other	200,936		—		—		—		200,936
Nonresidential real estate loans	187,740		—		3,194		751		191,685
Construction loans	534		—		—		—		534
Land loans	403		—		830		—		1,233
Commercial loans:
Regional commercial banking	34,816		—		225		—		35,041
Health care	27,695		—		—		—		27,695
Direct commercial lessor	21,565		650		—		—		22,215
Commercial leases:
Investment rated commercial leases	199,020		—		—		—		199,020
Other commercial leases	83,393		216		—		—		83,609
Consumer	1,742		—		2		—		1,744
	$	1,202,965	$	1,413	$	6,611	$	3,821	$	1,214,810

As of December 31, 2015, the risk categories of loans by class of loans are as follows:



	Pass		Special Mention		Substandard		Nonaccrual		Total
One-to-four family residential real estate loans	$	112,449	$	—	$	576	$	1,936	$	114,961
One-to-four family residential real estate loans – non-owner occupied	43,858		219		271		192		44,540
Multi-family mortgage loans - Illinois	312,329		344		4,656		828		318,157
Multi-family mortgage loans - Other	187,358		—		511		—		187,869
Nonresidential real estate loans	219,859		1,600		4,981		295		226,735
Construction loans	21		—		—		—		21
Land loans	450		—		842		—		1,292
Commercial loans:
Regional commercial banking	29,377		—		614		—		29,991
Health care	31,809		—		—		—		31,809
Direct commercial lessor	17,716		—		—		—		17,716
Commercial leases:									—
Investment rated commercial leases	170,100		—		—		—		170,100
Other commercial leases	95,305		—		—		—		95,305
Consumer	1,831		—		—		—		1,831
	$	1,222,462	$	2,163	$	12,451	$	3,251	$	1,240,327

Fair Value (Notes)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value

Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values:


•	Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.


•	Level 2 – Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.


•	Level 3 – Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The Company used the following methods and significant assumptions to estimate the fair value of each type of financial instrument:

Securities: The fair values of marketable equity securities are generally determined by quoted prices, in active markets, for each specific security (Level 1). If Level 1 measurement inputs are not available for a marketable equity security, we determine its fair value based on the quoted price of a similar security traded in an active market (Level 2). The fair values of debt securities are generally determined by matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities, but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2).

Loans Held for Sale: Loans held for sale are carried at the lower of cost or fair value, which is evaluated on a pool-level basis. The fair value of loans held for sale is determined using quoted prices for similar assets, adjusted for specific attributes of that loan or other observable market data, such as outstanding commitments from third party investors (Level 2).

Impaired Loans: The fair value of impaired loans with specific allocations of the allowance for loan losses is generally based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available for similar loans and collateral underlying such loans. Non-real estate collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, resulting in a Level 3 fair value classification. Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted in accordance with the allowance policy.

Other Real Estate Owned: Assets acquired through or instead of loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. Fair value is commonly based on recent real estate appraisals which are updated no less frequently than annually. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach with data from comparable properties. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Real estate owned properties are evaluated on a quarterly basis for additional impairment and adjusted accordingly.

Mortgage Servicing Rights: On a quarterly basis, loan servicing rights are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. The fair values of mortgage servicing rights are based on a valuation model that calculates the present value of estimated net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income. The Company is able to compare the valuation model inputs and results to widely available published industry data for reasonableness (Level 2).

The following table sets forth the Company’s financial assets that were accounted for at fair value and are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.



	Fair Value Measurements Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value
June 30, 2016
Securities:
Certificates of deposit	$	—	$	81,376	$	—	$	81,376
Equity mutual fund	517		—		—		517
Mortgage-backed securities – residential	—		17,439		—		17,439
Collateralized mortgage obligations – residential	—		6,346		—		6,346
SBA-guaranteed loan participation certificates	—		20		—		20
	$	517	$	105,181	$	—	$	105,698
December 31, 2015
Securities:
Certificates of deposit	$	—	$	87,901	$	—	$	87,901
Equity mutual fund	507		—		—		507
Mortgage-backed securities - residential	—		19,180		—		19,180
Collateralized mortgage obligations – residential	—		7,142		—		7,142
SBA-guaranteed loan participation certificates	—		23		—		23
	$	507	$	114,246	$	—	$	114,753

The following table sets forth the Company’s assets that were measured at fair value on a non-recurring basis:



	Fair Value Measurement Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value
June 30, 2016
Impaired loans:
Multi-family mortgage	$	—	$	—	$	589	$	589
Nonresidential real estate	—		—		270		270
	$	—	$	—	$	859	$	859
Other real estate owned:
One-to-four family residential real estate	$	—	$	—	$	33	$	33
Nonresidential real estate	—		—		674		674
	$	—	$	—	$	707	$	707
Mortgage servicing rights	$	—	$	253	$	—	$	253

December 31, 2015
Impaired loans:
Multi-family mortgage	$	—	$	—	$	477	$	477
Nonresidential real estate	—		—		36		36
	$	—	$	—	$	513	$	513
Other real estate owned:
One-to-four family residential real estate	$	—	$	—	$	42	$	42
Multi-family mortgage	—		—		354		354
Nonresidential real estate	—		—		474		474
Land	—		—		794		794
	$	—	$	—	$	1,664	$	1,664
Mortgage servicing rights	$	—	$	281	$	—	$	281

Impaired loans that are measured for impairment using the fair value of the collateral for collateral–dependent loans and which have specific valuation allowances had a carrying amount of $940,000, with a valuation allowance of $81,000 at June 30, 2016, compared to a carrying amount of $557,000 and a valuation allowance of $44,000 at December 31, 2015. The increase in the valuation allowance resulted in an increase in the provision for loan losses of $37,000 for the six months ended June 30, 2016. There was a decrease in the provision for loan losses of $405,000 for the six months ended June 30, 2015.

Other real estate owned ("OREO"), which is carried at the lower of cost or fair value less costs to sell, had a carrying value of $1.0 million less a valuation allowance of $299,000, or $707,000 at June 30, 2016, compared to a carrying value of $2.5 million less a valuation allowance of $881,000, or $1.7 million at December 31, 2015. There were $129,000 of valuation adjustments of OREO recorded for the six months ended June 30, 2016. There were $236,000 of valuation adjustments of OREO recorded for the six months ended June 30, 2015.

Mortgage servicing rights, which are carried at lower of cost or fair value, had a carrying amount of $253,000 at June 30, 2016, and a carrying amount of $281,000 at December 31, 2015. There was no pre-tax provision for our mortgage servicing rights portfolio included in noninterest income for the six months ended June 30, 2016, compared to a pre-tax recovery of $13,000 for the same period in 2015.

The following table presents quantitative information, based on certain empirical data with respect to Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at June 30, 2016:



	Fair Value		Valuation Technique(s)	Significant Unobservable Input(s)	Range (Weighted Average)
Impaired loans:
Multi-family mortgage loans	$	589	Sales comparison	Comparison between sales and income approaches	35.6% to 89.3% (43%)
			Income approach	Cap Rate	10.0%
Nonresidential real estate loans	270		Sales comparison	Comparison between sales and income approaches	-10.2% to 1.2% (-9%)
			Income approach	Cap Rate	8.5%
Impaired loans	$	859
Other real estate owned:
One-to-four family residential real estate	$	33	Sales comparison	Discount applied to valuation	8.6%
Nonresidential real estate loans	674		Sales comparison	Comparison between sales and income approaches	-3.2% to 54.9% (11%)
Other real estate owned	$	707



	Fair Value		Valuation Technique(s)	Unobservable Input(s)	Range (Weighted Average)
Impaired loans
Multi-family mortgage	$	477	Sales comparison	Comparison between sales and income approaches	39.3%
			Income approach	Cap Rate	8.75%
Nonresidential real estate	36		Sales comparison	Comparison between sales and income approaches	1.2%
	$	513
Other real estate owned
One-to-four family residential real estate	$	42	Sales comparison	Discount applied to valuation	-0.35% to 2.8% (0.03%)
Multi-family mortgage	354		Sales comparison	Comparison between sales and income approaches	-67.74% to 10.37% (-13%)
Nonresidential real estate	474		Sales comparison	Comparison between sales and income approaches	-15.6% to 1.46% (-5%)
Land	794		Sales comparison	Discount applied to valuation	-7.7% to 17.24% (6%)
	$	1,664

The carrying amount and estimated fair value of financial instruments are as follows:



			Fair Value Measurements at June 30, 2016 Using:
	Carrying Amount		Level 1		Level 2		Level 3		Total
Financial assets
Cash and cash equivalents	$	85,557	$	11,509	$	74,048	$	—	$	85,557
Securities	105,698		517		105,181		—		105,698
Loans receivable, net of allowance for loan losses	1,207,553		—		1,230,988		859		1,231,847
FHLBC stock	6,257		—		—		—		N/A
Accrued interest receivable	4,000		—		4,000		—		4,000
Financial liabilities
Noninterest-bearing demand deposits	$	231,928	$	—	$	231,928	$	—	$	231,928
Savings deposits	158,669		—		158,669		—		158,669
NOW and money market accounts	573,698		—		573,698		—		573,698
Certificates of deposit	304,307		—		304,840		—		304,840
Borrowings	1,469		—		1,469		—		1,469
Accrued interest payable	66		—		66		—		66



			Fair Value Measurements at December 31, 2015 Using:
	Carrying Amount		Level 1		Level 2		Level 3		Total
Financial assets
Cash and cash equivalents	$	59,377	$	13,192	$	46,185	$	—	$	59,377
Securities	114,753		507		114,246		—		114,753
Loans receivable, net of allowance for loan losses	1,232,257		—		1,240,791		513		1,241,304
FHLBC stock	6,257		—		—		—		N/A
Accrued interest receivable	4,226		—		4,226		—		4,226
Financial liabilities
Noninterest-bearing demand deposits	$	254,830	$	—	$	254,830	$	—	$	254,830
Savings deposits	156,752		—		156,752		—		156,752
NOW and money market accounts	578,636		—		578,636		—		578,636
Certificates of deposit	222,701		—		222,026		—		222,026
Borrowings	64,318		—		64,318		—		64,318
Accrued interest payable	39		—		39		—		39

For purposes of the above, the following assumptions were used:

Cash and Cash Equivalents: The estimated fair values for cash and cash equivalents are based on their carrying value due to the short-term nature of these assets.

Loans: The estimated fair value for loans has been determined by calculating the present value of future cash flows based on the current rate the Company would charge for similar loans with similar maturities, applied for an estimated time period until the loan is assumed to be repriced or repaid. The estimated fair values of loans held for sale are based on quoted market prices.

FHLBC Stock: It is not practicable to determine the fair value of FHLBC stock due to the restrictions placed on its transferability.

Deposit Liabilities: The estimated fair value for certificates of deposit has been determined by calculating the present value of future cash flows based on estimates of rates the Company would pay on such deposits, applied for the time period until maturity. The estimated fair values of noninterest-bearing demand, NOW, money market, and savings deposits are assumed to approximate their carrying values as management establishes rates on these deposits at a level that approximates the local market area. Additionally, these deposits can be withdrawn on demand.

Borrowings: The estimated fair values of advances from the FHLBC and notes payable are based on current market rates for similar financing. The estimated fair value of securities sold under agreements to repurchase is assumed to equal its carrying value due to the short-term nature of the liability.

Accrued Interest: The estimated fair values of accrued interest receivable and payable are assumed to equal their carrying value.

Off-Balance-Sheet Instruments: Off-balance-sheet items consist principally of unfunded loan commitments, standby letters of credit, and unused lines of credit. The estimated fair values of unfunded loan commitments, standby letters of credit, and unused lines of credit are not material.

While the above estimates are based on management’s judgment of the most appropriate factors, as of the balance sheet date, there is no assurance that the estimated fair values would have been realized if the assets were disposed of or the liabilities settled at that date, since market values may differ depending on the various circumstances. The estimated fair values would also not apply to subsequent dates.

In addition, other assets and liabilities that are not financial instruments, such as premises and equipment, are not included in the above disclosures.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Other Real Estate Owned (Notes)

6 Months Ended

Jun. 30, 2016

Other Real Estate [Abstract]

Real Estate Owned [Text Block]

Real estate that is acquired through foreclosure or a deed in lieu of foreclosure is classified as other real estate owned ("OREO") until it is sold. When real estate is acquired through foreclosure or by deed in lieu of foreclosure, it is recorded at its fair value, less the estimated costs of disposal. If the fair value of the property is less than the loan balance, the difference is charged against the allowance for loan losses.



	June 30, 2016							December 31, 2015
	Balance		Valuation Allowance			Net OREO Balance		Balance		Valuation Allowance			Net OREO Balance
One–to–four family residential	$	2,506	$	(73	)	$	2,433	$	2,684	$	(63	)	$	2,621
Multi-family mortgage	774		(37		)	737		1,025		(74		)	951
Nonresidential real estate	1,307		(242		)	1,065		1,986		(239		)	1,747
Land	1,450		(312		)	1,138		2,358		(666		)	1,692
	$	6,037	$	(664	)	$	5,373	$	8,053	$	(1,042	)	$	7,011

The following represents the roll forward of OREO and the composition of OREO properties:



	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2016			2015			2016			2015
Beginning balance	$	5,629		$	6,316		$	7,011		$	6,358
New foreclosed properties	56			578			121			1,167
Valuation adjustments	(10		)	(23		)	(129		)	(236		)
Sales	(302		)	(1,332		)	(1,630		)	(1,750		)
Ending balance	$	5,373		$	5,539		$	5,373		$	5,539

Activity in the valuation allowance is as follows:



	For the Three Months Ended June 30,					For the Six Months Ended June 30,
	2016		2015			2016			2015
Beginning balance	$	654	$	1,109		$	1,042		$	896
Additions charged to expense	10		22			129			235
Reductions from sales of other real estate owned	—		(29		)	(507		)	(29		)
Ending balance	$	664	$	1,102		$	664		$	1,102

- Definition

The entire disclosure for real estate owned (as defined). Generally, the largest component of real estate owned by lenders is assets taken in settlement of troubled loans through surrender or foreclosure. Real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned.

+ References + Details

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Basis of Presentation: BankFinancial Corporation, a Maryland corporation headquartered in Burr Ridge, Illinois, is the owner of all of the issued and outstanding capital stock of BankFinancial, F.S.B. (the “Bank”). The interim unaudited consolidated financial statements include the accounts of and transactions of BankFinancial Corporation, the Bank, and the Bank’s wholly-owned subsidiaries, Financial Assurance Services, Inc. and BF Asset Recovery Corporation (collectively, “the Company”), and reflect all normal and recurring adjustments that are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. All significant intercompany accounts and transactions have been eliminated. The results of operations for the three- and six-month periods ended June 30, 2016 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2016. Certain information and note disclosures normally included in financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. Use of Estimates: To prepare financial statements in conformity with GAAP, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ. Reclassifications: Certain reclassifications have been made in the prior period’s financial statements to conform them to the current period’s presentation. These unaudited consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, as filed with the Securities and Exchange Commission. Recent Accounti
Basis of Presentation	Basis of Presentation: BankFinancial Corporation, a Maryland corporation headquartered in Burr Ridge, Illinois, is the owner of all of the issued and outstanding capital stock of BankFinancial, F.S.B. (the “Bank”).
Principles of Consolidation	The interim unaudited consolidated financial statements include the accounts of and transactions of BankFinancial Corporation, the Bank, and the Bank’s wholly-owned subsidiaries, Financial Assurance Services, Inc. and BF Asset Recovery Corporation (collectively, “the Company”), and reflect all normal and recurring adjustments that are, in the opinion of management, considered necessary for a fair presentation of the financial condition and results of operations for the periods presented. All significant intercompany accounts and transactions have been eliminated. The results of operations for the three- and six-month periods ended June 30, 2016 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2016. Certain information and note disclosures normally included in financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. Use of Estimate
Use of Estimates	Use of Estimates: To prepare financial statements in conformity with GAAP, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ.
Uncollected Interest Policy	The Company’s reserve for uncollected loan interest was $238,000 and $181,000 at June 30, 2016 and December 31, 2015, respectively. When a loan is on nonaccrual status and the ultimate collectability of the total principal of an impaired loan is in doubt, all payments are applied to principal under the cost recovery method. Alternatively, when a loan is on non-accrual status but there is doubt concerning only the ultimate collectability of interest, contractual interest is credited to interest income only when received, under the cash basis method pursuant to the provisions of FASB ASC 310–10, as applicable. In all cases, the average balances are calculated based on the month–end balances of the financing receivables within the period reported pursuant to the provisions of FASB ASC 310–10, as applicable.
Reclassifications	Reclassifications: Certain reclassifications have been made in the prior period’s financial statements to conform them to the current period’s presentation. These unaudited consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, as filed with the Securities and Exchange Commission.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the FASB issued an update (ASU No. 2014-09, Revenue from Contracts with Customers) creating FASB Topic 606, Revenue from Contracts with Customers. The guidance in this update affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards (for example, insurance contracts or lease contracts). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides steps to follow to achieve the core principle. An entity should disclose sufficient information to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Qualitative and quantitative information is required about contracts with customers, significant judgments and changes in judgments, and assets recognized from the costs to obtain or fulfill a contract. The amendments in this update originally were to become effective for annual periods and interim periods within those annual periods beginning after December 15, 2016. During 2015, the FASB delayed the effectiveness by one year to annual periods and interim periods beginning after December 15, 2017. We are currently evaluating the impact of adopting the new guidance on the consolidated financial statements. On January 5, 2016, the FASB issued an update (ASU No. 2016-01, Financial Instruments - Recognition and Measurement of Financial Assets and Liabilities). The new guidance is intended to improve the recognition and measurement of financial instruments by requiring: equity investments (other than equity method or consolidation) to be measured at fair value with changes in fair value recognized in net income; public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; separate presentation of financial assets and financial liabilities by measurement category and form of financial assets (i.e. securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; eliminating the requirement to disclose the fair value of financial instruments measured at amortized cost for organizations that are not public business entities; eliminating the requirement for non-public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is to be required to be disclosed for financial instruments measured at amortized cost on the balance sheet; and requiring a reporting organization to present separately in other comprehensive income the portion of the total change in fair value of a liability resulting from the change in the instrument-specific credit risk (also referred to as “own credit”) when the organization has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. The new guidance is effective for public business entities for fiscal years beginning after December 15, 2017. We are currently evaluating the impact of adopting the new guidance on the consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)” (“ASU 2016-02”). The standard requires a lessee to recognize assets and liabilities on the balance sheet for leases with lease terms greater than 12 months. ASU 2016-02 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018, and early adoption is permitted. We are currently evaluating the impact that the standard will have on our consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”). The standard is intended to simplify several areas of accounting for share-based compensation arrangements, including the income tax impact, classification on the statement of cash flows and forfeitures. ASU 2016-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, and early adoption is permitted. We are currently evaluating the impact that the standard will have on our consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). These amendments require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019 (i.e., January 1, 2020, for calendar year entities). Early application will be permitted for all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We are currently evaluating the impact that the standard will have on our consolidated financial statements.

Summary of Significant Accounting Policies New Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the FASB issued an update (ASU No. 2014-09, Revenue from Contracts with Customers) creating FASB Topic 606, Revenue from Contracts with Customers. The guidance in this update affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards (for example, insurance contracts or lease contracts). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides steps to follow to achieve the core principle. An entity should disclose sufficient information to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Qualitative and quantitative information is required about contracts with customers, significant judgments and changes in judgments, and assets recognized from the costs to obtain or fulfill a contract. The amendments in this update originally were to become effective for annual periods and interim periods within those annual periods beginning after December 15, 2016. During 2015, the FASB delayed the effectiveness by one year to annual periods and interim periods beginning after December 15, 2017. We are currently evaluating the impact of adopting the new guidance on the consolidated financial statements. On January 5, 2016, the FASB issued an update (ASU No. 2016-01, Financial Instruments - Recognition and Measurement of Financial Assets and Liabilities). The new guidance is intended to improve the recognition and measurement of financial instruments by requiring: equity investments (other than equity method or consolidation) to be measured at fair value with changes in fair value recognized in net income; public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; separate presentation of financial assets and financial liabilities by measurement category and form of financial assets (i.e. securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; eliminating the requirement to disclose the fair value of financial instruments measured at amortized cost for organizations that are not public business entities; eliminating the requirement for non-public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is to be required to be disclosed for financial instruments measured at amortized cost on the balance sheet; and requiring a reporting organization to present separately in other comprehensive income the portion of the total change in fair value of a liability resulting from the change in the instrument-specific credit risk (also referred to as “own credit”) when the organization has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. The new guidance is effective for public business entities for fiscal years beginning after December 15, 2017. We are currently evaluating the impact of adopting the new guidance on the consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)” (“ASU 2016-02”). The standard requires a lessee to recognize assets and liabilities on the balance sheet for leases with lease terms greater than 12 months. ASU 2016-02 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018, and early adoption is permitted. We are currently evaluating the impact that the standard will have on our consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”). The standard is intended to simplify several areas of accounting for share-based compensation arrangements, including the income tax impact, classification on the statement of cash flows and forfeitures. ASU 2016-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, and early adoption is permitted. We are currently evaluating the impact that the standard will have on our consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). These amendments require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019 (i.e., January 1, 2020, for calendar year entities). Early application will be permitted for all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We are currently evaluating the impact that the standard will have on our consolidated financial statements.

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]



	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Net income available to common stockholders	$	831		$	2,224		$	2,735		$	4,210
Average common shares outstanding	19,827,581			20,811,856			19,991,561			20,956,110
Less:
Unearned ESOP shares	(694,773		)	(792,816		)	(706,941		)	(804,864		)
Unvested restricted stock shares	(2,690		)	(9,682		)	(5,290		)	(13,201		)
Weighted average common shares outstanding	19,130,118			20,009,358			19,279,330			20,138,045
Add - Net effect of dilutive unvested restricted stock	317			4,215			312			4,160
Diluted weighted average common shares outstanding	19,130,435			20,013,573			19,279,642			20,142,205
Basic earnings per common share	$	0.04		$	0.11		$	0.14		$	0.21
Diluted earnings per common share	$	0.04		$	0.11		$	0.14		$	0.21
Number of antidilutive stock options excluded from the diluted earnings per share calculation	536,459			—			536,459			—
Weighted average exercise price of anti-dilutive option shares	$	12.99		$	—		$	12.99		$	—

Securities (Tables)

6 Months Ended

Jun. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

The fair value of securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income are shown below.



	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
June 30, 2016
Certificates of deposit	$	81,376	$	—	$	—		$	81,376
Equity mutual fund	500		17		—			517
Mortgage-backed securities - residential	16,677		762		—			17,439
Collateralized mortgage obligations - residential	6,345		22		(21		)	6,346
SBA-guaranteed loan participation certificates	20		—		—			20
	$	104,918	$	801	$	(21	)	$	105,698
December 31, 2015
Certificates of deposit	$	87,901	$	—	$	—		$	87,901
Equity mutual fund	500		7		—			507
Mortgage-backed securities - residential	18,330		880		(30		)	19,180
Collateralized mortgage obligations - residential	7,111		41		(10		)	7,142
SBA-guaranteed loan participation certificates	23		—		—			23
	$	113,865	$	928	$	(40	)	$	114,753



	June 30, 2016
	Amortized Cost		Fair Value
Due in one year or less	$	81,376	$	81,376
Equity mutual fund	500		517
Mortgage-backed securities - residential	16,677		17,439
Collateralized mortgage obligations - residential	6,345		6,346
SBA-guaranteed loan participation certificates	20		20
	$	104,918	$	105,698

Sales of securities were as follows:



	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Proceeds	$	—	$	—	$	46	$	—
Gross gains	—		—		46		—
Gross losses	—		—		—		—

Securities with unrealized losses not recognized in income are as follows:



	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
June 30, 2016
Collateralized mortgage obligations - residential	$	3,216	$	(13	)	$	1,171	$	(8	)	$	4,387	$	(21	)

December 31, 2015
Mortgage-backed securities - residential	$	—	$	—		$	1,724	$	(30	)	$	1,724	$	(30	)
Collateralized mortgage obligations - residential	—		—			1,299		(10		)	1,299		(10		)
	$	—	$	—		$	3,023	$	(40	)	$	3,023	$	(40	)

Unrealized gains and losses recognized in accumulated other comprehensive income (loss)

The fair value of securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income are shown below.



	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
June 30, 2016
Certificates of deposit	$	81,376	$	—	$	—		$	81,376
Equity mutual fund	500		17		—			517
Mortgage-backed securities - residential	16,677		762		—			17,439
Collateralized mortgage obligations - residential	6,345		22		(21		)	6,346
SBA-guaranteed loan participation certificates	20		—		—			20
	$	104,918	$	801	$	(21	)	$	105,698
December 31, 2015
Certificates of deposit	$	87,901	$	—	$	—		$	87,901
Equity mutual fund	500		7		—			507
Mortgage-backed securities - residential	18,330		880		(30		)	19,180
Collateralized mortgage obligations - residential	7,111		41		(10		)	7,142
SBA-guaranteed loan participation certificates	23		—		—			23
	$	113,865	$	928	$	(40	)	$	114,753

Amortized cost and fair values of securities



	June 30, 2016
	Amortized Cost		Fair Value
Due in one year or less	$	81,376	$	81,376
Equity mutual fund	500		517
Mortgage-backed securities - residential	16,677		17,439
Collateralized mortgage obligations - residential	6,345		6,346
SBA-guaranteed loan participation certificates	20		20
	$	104,918	$	105,698

Securities with unrealized losses

Securities with unrealized losses not recognized in income are as follows:



	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
June 30, 2016
Collateralized mortgage obligations - residential	$	3,216	$	(13	)	$	1,171	$	(8	)	$	4,387	$	(21	)

December 31, 2015
Mortgage-backed securities - residential	$	—	$	—		$	1,724	$	(30	)	$	1,724	$	(30	)
Collateralized mortgage obligations - residential	—		—			1,299		(10		)	1,299		(10		)
	$	—	$	—		$	3,023	$	(40	)	$	3,023	$	(40	)

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References + Details

Loans Receivable (Tables)

6 Months Ended

Jun. 30, 2016

Receivables [Abstract]

Loans By Class Modified As Troubled Debt Restructurings With Payment Default [Table Text Block]

The following table presents TDRs for which there was a payment default during the six months ended June 30, 2016 and 2015 within twelve months following the modification.



	2016			2015
	Number of loans	Recorded investment		Number of loans	Recorded investment
One-to-four family residential real estate	3	$	104	2	$	77

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

Loans receivable are as follows:



	June 30, 2016			December 31, 2015
One-to-four family residential real estate	$	147,876		$	159,501
Multi-family mortgage	504,158			506,026
Nonresidential real estate	191,685			226,735
Construction and land	1,767			1,313
Commercial loans	84,951			79,516
Commercial leases	282,629			265,405
Consumer	1,744			1,831
	1,214,810			1,240,327
Net deferred loan origination costs	1,658			1,621
Allowance for loan losses	(8,915		)	(9,691		)
Loans, net	$	1,207,553		$	1,232,257

The following tables present the balance in the allowance for loan losses and the loans receivable by portfolio segment and based on impairment method:



	Allowance for loan losses						Loan Balances
	Individually evaluated for impairment		Collectively evaluated for impairment		Total		Individually evaluated for impairment		Collectively evaluated for impairment		Total
June 30, 2016
One-to-four family residential real estate	$	—	$	1,321	$	1,321	$	3,210	$	144,666	$	147,876
Multi-family mortgage	54		3,430		3,484		1,633		502,525		504,158
Nonresidential real estate	27		2,344		2,371		751		190,934		191,685
Construction and land	—		53		53		—		1,767		1,767
Commercial loans	—		645		645		—		84,951		84,951
Commercial leases	—		1,010		1,010		—		282,629		282,629
Consumer	—		31		31		—		1,744		1,744
	$	81	$	8,834	$	8,915	$	5,594	$	1,209,216	1,214,810
Net deferred loan origination costs											1,658
Allowance for loan losses											(8,915		)
Loans, net											$	1,207,553



	Allowance for loan losses						Loan Balances
	Individually evaluated for impairment		Collectively evaluated for impairment		Total		Individually evaluated for impairment		Collectively evaluated for impairment		Total
December 31, 2015
One-to-four family residential real estate	$	—	$	1,704	$	1,704	$	2,672	$	156,829	$	159,501
Multi-family mortgage	41		3,569		3,610		2,879		503,147		506,026
Nonresidential real estate	3		2,579		2,582		2,099		224,636		226,735
Construction and land	—		43		43		—		1,313		1,313
Commercial loans	—		654		654		—		79,516		79,516
Commercial leases	—		1,073		1,073		—		265,405		265,405
Consumer	—		25		25		—		1,831		1,831
	$	44	$	9,647	$	9,691	$	7,650	$	1,232,677	1,240,327
Net deferred loan origination costs											1,621
Allowance for loan losses											(9,691		)
Loans, net											$	1,232,257

Activity in the allowance for loan losses is as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Beginning balance	$	9,416		$	11,576		$	9,691		$	11,990
Loans charged off:
One-to-four family residential real estate	(355		)	(99		)	(407		)	(202		)
Multi-family mortgage	(6		)	(161		)	(51		)	(180		)
Nonresidential real estate	(1,657		)	(252		)	(1,660		)	(263		)
Commercial loans	—			—			—			(98		)
Consumer	(2		)	(4		)	(18		)	(8		)
	(2,020		)	(516		)	(2,136		)	(751		)
Recoveries:
One-to-four family residential real estate	6			219			87			279
Multi-family mortgage	9			4			146			8
Nonresidential real estate	161			9			161			25
Construction and land	—			—			35			6
Commercial loans	28			6			105			463
Commercial leases	—			—			—			1
Consumer	—			—			1			1
	204			238			535			783
Net recoveries (charge-offs)	(1,816		)	(278		)	(1,601		)	32
Provision for (recovery of) loan losses	1,315			(488		)	825			(1,212		)
Ending balance	$	8,915		$	10,810		$	8,915		$	10,810

The following tables present the recorded investment in nonaccrual loans and loans past due over 90 days still on accrual by class of loans:



	Loan Balance		Recorded Investment		Loans Past Due Over 90 Days, Still Accruing
June 30, 2016
One-to-four family residential real estate	$	2,881	$	2,433	$	—
One-to-four family residential real estate – non owner occupied	92		192		—
Multi-family mortgage - Illinois	1,074		1,021		—
Nonresidential real estate	785		754		—
Land	828		—		828
	$	5,660	$	4,400	$	828
December 31, 2015
One-to-four family residential real estate	$	2,704	$	2,263	$	—
One-to-four family residential real estate – non owner occupied	92		192		—
Multi-family mortgage - Illinois	829		821		—
Nonresidential real estate	324		296		—
	$	3,949	$	3,572	$	—

The following tables present the aging of the recorded investment of loans at June 30, 2016 by class of loans:



	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Loans Not Past Due		Total
One-to-four family residential real estate loans	$	94	$	299	$	2,022	$	2,415	$	103,167	$	105,582
One-to-four family residential real estate loans – non-owner occupied	2		4		192		198		41,304		41,502
Multi-family mortgage - Illinois	—		—		1,020		1,020		298,492		299,512
Multi-family mortgage - Other	—		—		—		—		199,773		199,773
Nonresidential real estate	—		—		754		754		187,802		188,556
Construction	—		—		—		—		537		537
Land	—		—		842		842		398		1,240
Commercial loans:
Regional commercial banking	—		—		—		—		35,121		35,121
Health care	—		—		—		—		27,726		27,726
Direct commercial lessor	—		—		—		—		22,381		22,381
Commercial leases:
Investment rated commercial leases	121		—		—		121		200,115		200,236
Other commercial leases	—		—		—		—		83,999		83,999
Consumer	—		—		—		—		1,751		1,751
	$	217	$	303	$	4,830	$	5,350	$	1,202,566	$	1,207,916

The following tables present the aging of the recorded investment of loans at December 31, 2015 by class of loans:



	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Loans Not Past Due		Total
One-to-four family residential real estate loans	$	2,000	$	572	$	1,997	$	4,569	$	109,893	$	114,462
One-to-four family residential real estate loans – non-owner occupied	299		164		192		655		43,557		44,212
Multi-family mortgage - Illinois	651		283		821		1,755		312,620		314,375
Multi-family mortgage - Other	—		—		—		—		188,178		188,178
Nonresidential real estate	—		—		296		296		223,018		223,314
Construction	—		—		—		—		21		21
Land	—		—		—		—		1,279		1,279
Commercial loans:
Regional commercial banking	4		150		—		154		29,890		30,044
Health care	—		—		—		—		31,862		31,862
Direct commercial lessor	—		—		—		—		17,873		17,873
Commercial leases:
Investment rated commercial leases	50		363		—		413		170,859		171,272
Other commercial leases	—		—		—		—		95,800		95,800
Consumer	21		—		—		21		1,819		1,840
	$	3,025	$	1,532	$	3,306	$	7,863	$	1,226,669	$	1,234,532

The following table presents loans classified as TDRs:



	June 30, 2016		December 31, 2015
One-to-four family residential real estate	$	187	$	1,385
Multi-family mortgage	—		1,119
Troubled debt restructured loans – accrual loans	187		2,504
One-to-four family residential real estate	232		174
Troubled debt restructured loans – nonaccrual loans	232		174
Total troubled debt restructured loans	$	419	$	2,678

The following tables present TDR activity:



	Six Months Ended June 30,
	2016					2015
	Number of loans	Pre- Modification outstanding recorded investment		Post- Modification outstanding recorded investment		Number of loans	Pre- Modification outstanding recorded investment		Post- Modification outstanding recorded investment
One-to-four family residential real estate	1	$	63	$	63	1	$	63	$	63



	Due to reduction in interest rate		Due to extension of maturity date		Due to permanent reduction in recorded investment		Total
For the Six Months Ended June 30, 2016
One-to-four family residential real estate	$	—	$	63	$	—	$	63
For the Six Months Ended June 30, 2015
One-to-four family residential real estate	$	—	$	63	$	—	$	63

The following table presents TDRs for which there was a payment default during the six months ended June 30, 2016 and 2015 within twelve months following the modification.



	2016			2015
	Number of loans	Recorded investment		Number of loans	Recorded investment
One-to-four family residential real estate	3	$	104	2	$	77

A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms.

The TDRs for which there was a payment default resulted in no change to the allowance for loan losses allocated and resulted in no charge-offs during the six months ended June 30, 2016 and 2015.

Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered “Pass” rated loans.

As of June 30, 2016, based on the most recent analysis performed, the risk categories of loans by class of loans are as follows:



	Pass		Special Mention		Substandard		Nonaccrual		Total
One-to-four family residential real estate loans	$	103,885	$	—	$	335	$	1,854	$	106,074
One-to-four family residential real estate loans – non-owner occupied	41,397		213		—		192		41,802
Multi-family mortgage loans - Illinois	299,839		334		2,025		1,024		303,222
Multi-family mortgage loans - Other	200,936		—		—		—		200,936
Nonresidential real estate loans	187,740		—		3,194		751		191,685
Construction loans	534		—		—		—		534
Land loans	403		—		830		—		1,233
Commercial loans:
Regional commercial banking	34,816		—		225		—		35,041
Health care	27,695		—		—		—		27,695
Direct commercial lessor	21,565		650		—		—		22,215
Commercial leases:
Investment rated commercial leases	199,020		—		—		—		199,020
Other commercial leases	83,393		216		—		—		83,609
Consumer	1,742		—		2		—		1,744
	$	1,202,965	$	1,413	$	6,611	$	3,821	$	1,214,810

As of December 31, 2015, the risk categories of loans by class of loans are as follows:



	Pass		Special Mention		Substandard		Nonaccrual		Total
One-to-four family residential real estate loans	$	112,449	$	—	$	576	$	1,936	$	114,961
One-to-four family residential real estate loans – non-owner occupied	43,858		219		271		192		44,540
Multi-family mortgage loans - Illinois	312,329		344		4,656		828		318,157
Multi-family mortgage loans - Other	187,358		—		511		—		187,869
Nonresidential real estate loans	219,859		1,600		4,981		295		226,735
Construction loans	21		—		—		—		21
Land loans	450		—		842		—		1,292
Commercial loans:
Regional commercial banking	29,377		—		614		—		29,991
Health care	31,809		—		—		—		31,809
Direct commercial lessor	17,716		—		—		—		17,716
Commercial leases:									—
Investment rated commercial leases	170,100		—		—		—		170,100
Other commercial leases	95,305		—		—		—		95,305
Consumer	1,831		—		—		—		1,831
	$	1,222,462	$	2,163	$	12,451	$	3,251	$	1,240,327

Loans receivable

Loans receivable are as follows:



	June 30, 2016			December 31, 2015
One-to-four family residential real estate	$	147,876		$	159,501
Multi-family mortgage	504,158			506,026
Nonresidential real estate	191,685			226,735
Construction and land	1,767			1,313
Commercial loans	84,951			79,516
Commercial leases	282,629			265,405
Consumer	1,744			1,831
	1,214,810			1,240,327
Net deferred loan origination costs	1,658			1,621
Allowance for loan losses	(8,915		)	(9,691		)
Loans, net	$	1,207,553		$	1,232,257

Loans Receivable Based On Impairment Method [Table Text Block]

The following tables present the balance in the allowance for loan losses and the loans receivable by portfolio segment and based on impairment method:



	Allowance for loan losses						Loan Balances
	Individually evaluated for impairment		Collectively evaluated for impairment		Total		Individually evaluated for impairment		Collectively evaluated for impairment		Total
June 30, 2016
One-to-four family residential real estate	$	—	$	1,321	$	1,321	$	3,210	$	144,666	$	147,876
Multi-family mortgage	54		3,430		3,484		1,633		502,525		504,158
Nonresidential real estate	27		2,344		2,371		751		190,934		191,685
Construction and land	—		53		53		—		1,767		1,767
Commercial loans	—		645		645		—		84,951		84,951
Commercial leases	—		1,010		1,010		—		282,629		282,629
Consumer	—		31		31		—		1,744		1,744
	$	81	$	8,834	$	8,915	$	5,594	$	1,209,216	1,214,810
Net deferred loan origination costs											1,658
Allowance for loan losses											(8,915		)
Loans, net											$	1,207,553

Allowance for loan losses

ctivity in the allowance for loan losses is as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Beginning balance	$	9,416		$	11,576		$	9,691		$	11,990
Loans charged off:
One-to-four family residential real estate	(355		)	(99		)	(407		)	(202		)
Multi-family mortgage	(6		)	(161		)	(51		)	(180		)
Nonresidential real estate	(1,657		)	(252		)	(1,660		)	(263		)
Commercial loans	—			—			—			(98		)
Consumer	(2		)	(4		)	(18		)	(8		)
	(2,020		)	(516		)	(2,136		)	(751		)
Recoveries:
One-to-four family residential real estate	6			219			87			279
Multi-family mortgage	9			4			146			8
Nonresidential real estate	161			9			161			25
Construction and land	—			—			35			6
Commercial loans	28			6			105			463
Commercial leases	—			—			—			1
Consumer	—			—			1			1
	204			238			535			783
Net recoveries (charge-offs)	(1,816		)	(278		)	(1,601		)	32
Provision for (recovery of) loan losses	1,315			(488		)	825			(1,212		)
Ending balance	$	8,915		$	10,810		$	8,915		$	10,810

Schedule of Financing Receivables, Non Accrual Status

The following tables present the recorded investment in nonaccrual loans and loans past due over 90 days still on accrual by class of loans:



	Loan Balance		Recorded Investment		Loans Past Due Over 90 Days, Still Accruing
June 30, 2016
One-to-four family residential real estate	$	2,881	$	2,433	$	—
One-to-four family residential real estate – non owner occupied	92		192		—
Multi-family mortgage - Illinois	1,074		1,021		—
Nonresidential real estate	785		754		—
Land	828		—		828
	$	5,660	$	4,400	$	828
December 31, 2015
One-to-four family residential real estate	$	2,704	$	2,263	$	—
One-to-four family residential real estate – non owner occupied	92		192		—
Multi-family mortgage - Illinois	829		821		—
Nonresidential real estate	324		296		—
	$	3,949	$	3,572	$	—

Past Due Financing Receivables

The following tables present the aging of the recorded investment of loans at June 30, 2016 by class of loans:



	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Loans Not Past Due		Total
One-to-four family residential real estate loans	$	94	$	299	$	2,022	$	2,415	$	103,167	$	105,582
One-to-four family residential real estate loans – non-owner occupied	2		4		192		198		41,304		41,502
Multi-family mortgage - Illinois	—		—		1,020		1,020		298,492		299,512
Multi-family mortgage - Other	—		—		—		—		199,773		199,773
Nonresidential real estate	—		—		754		754		187,802		188,556
Construction	—		—		—		—		537		537
Land	—		—		842		842		398		1,240
Commercial loans:
Regional commercial banking	—		—		—		—		35,121		35,121
Health care	—		—		—		—		27,726		27,726
Direct commercial lessor	—		—		—		—		22,381		22,381
Commercial leases:
Investment rated commercial leases	121		—		—		121		200,115		200,236
Other commercial leases	—		—		—		—		83,999		83,999
Consumer	—		—		—		—		1,751		1,751
	$	217	$	303	$	4,830	$	5,350	$	1,202,566	$	1,207,916

Troubled Debt Restructurings on Financing Receivables

The following table presents loans classified as TDRs:



	June 30, 2016		December 31, 2015
One-to-four family residential real estate	$	187	$	1,385
Multi-family mortgage	—		1,119
Troubled debt restructured loans – accrual loans	187		2,504
One-to-four family residential real estate	232		174
Troubled debt restructured loans – nonaccrual loans	232		174
Total troubled debt restructured loans	$	419	$	2,678

Financing Receivable Credit Quality Indicators

As of June 30, 2016, based on the most recent analysis performed, the risk categories of loans by class of loans are as follows:



	Pass		Special Mention		Substandard		Nonaccrual		Total
One-to-four family residential real estate loans	$	103,885	$	—	$	335	$	1,854	$	106,074
One-to-four family residential real estate loans – non-owner occupied	41,397		213		—		192		41,802
Multi-family mortgage loans - Illinois	299,839		334		2,025		1,024		303,222
Multi-family mortgage loans - Other	200,936		—		—		—		200,936
Nonresidential real estate loans	187,740		—		3,194		751		191,685
Construction loans	534		—		—		—		534
Land loans	403		—		830		—		1,233
Commercial loans:
Regional commercial banking	34,816		—		225		—		35,041
Health care	27,695		—		—		—		27,695
Direct commercial lessor	21,565		650		—		—		22,215
Commercial leases:
Investment rated commercial leases	199,020		—		—		—		199,020
Other commercial leases	83,393		216		—		—		83,609
Consumer	1,742		—		2		—		1,744
	$	1,202,965	$	1,413	$	6,611	$	3,821	$	1,214,810

Loans By Class Modified As Troubled Debt Restructuring On Financing Receivables [Table Text Block]

The following tables present TDR activity:



	Six Months Ended June 30,
	2016					2015
	Number of loans	Pre- Modification outstanding recorded investment		Post- Modification outstanding recorded investment		Number of loans	Pre- Modification outstanding recorded investment		Post- Modification outstanding recorded investment
One-to-four family residential real estate	1	$	63	$	63	1	$	63	$	63

Fair Value (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Schedule of Company's financial instruments measured at fair values



	Fair Value Measurements Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value
June 30, 2016
Securities:
Certificates of deposit	$	—	$	81,376	$	—	$	81,376
Equity mutual fund	517		—		—		517
Mortgage-backed securities – residential	—		17,439		—		17,439
Collateralized mortgage obligations – residential	—		6,346		—		6,346
SBA-guaranteed loan participation certificates	—		20		—		20
	$	517	$	105,181	$	—	$	105,698
December 31, 2015
Securities:
Certificates of deposit	$	—	$	87,901	$	—	$	87,901
Equity mutual fund	507		—		—		507
Mortgage-backed securities - residential	—		19,180		—		19,180
Collateralized mortgage obligations – residential	—		7,142		—		7,142
SBA-guaranteed loan participation certificates	—		23		—		23
	$	507	$	114,246	$	—	$	114,753

Schedule of Company's financial instruments measured on non recurring at fair values

The following table sets forth the Company’s assets that were measured at fair value on a non-recurring basis:



	Fair Value Measurement Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value
June 30, 2016
Impaired loans:
Multi-family mortgage	$	—	$	—	$	589	$	589
Nonresidential real estate	—		—		270		270
	$	—	$	—	$	859	$	859
Other real estate owned:
One-to-four family residential real estate	$	—	$	—	$	33	$	33
Nonresidential real estate	—		—		674		674
	$	—	$	—	$	707	$	707
Mortgage servicing rights	$	—	$	253	$	—	$	253

December 31, 2015
Impaired loans:
Multi-family mortgage	$	—	$	—	$	477	$	477
Nonresidential real estate	—		—		36		36
	$	—	$	—	$	513	$	513
Other real estate owned:
One-to-four family residential real estate	$	—	$	—	$	42	$	42
Multi-family mortgage	—		—		354		354
Nonresidential real estate	—		—		474		474
Land	—		—		794		794
	$	—	$	—	$	1,664	$	1,664
Mortgage servicing rights	$	—	$	281	$	—	$	281

Schedule of fair value quantitative information



	Fair Value		Valuation Technique(s)	Significant Unobservable Input(s)	Range (Weighted Average)
Impaired loans:
Multi-family mortgage loans	$	589	Sales comparison	Comparison between sales and income approaches	35.6% to 89.3% (43%)
			Income approach	Cap Rate	10.0%
Nonresidential real estate loans	270		Sales comparison	Comparison between sales and income approaches	-10.2% to 1.2% (-9%)
			Income approach	Cap Rate	8.5%
Impaired loans	$	859
Other real estate owned:
One-to-four family residential real estate	$	33	Sales comparison	Discount applied to valuation	8.6%
Nonresidential real estate loans	674		Sales comparison	Comparison between sales and income approaches	-3.2% to 54.9% (11%)
Other real estate owned	$	707

Carrying amount and estimated fair value of financial instruments

The carrying amount and estimated fair value of financial instruments are as follows:



			Fair Value Measurements at June 30, 2016 Using:
	Carrying Amount		Level 1		Level 2		Level 3		Total
Financial assets
Cash and cash equivalents	$	85,557	$	11,509	$	74,048	$	—	$	85,557
Securities	105,698		517		105,181		—		105,698
Loans receivable, net of allowance for loan losses	1,207,553		—		1,230,988		859		1,231,847
FHLBC stock	6,257		—		—		—		N/A
Accrued interest receivable	4,000		—		4,000		—		4,000
Financial liabilities
Noninterest-bearing demand deposits	$	231,928	$	—	$	231,928	$	—	$	231,928
Savings deposits	158,669		—		158,669		—		158,669
NOW and money market accounts	573,698		—		573,698		—		573,698
Certificates of deposit	304,307		—		304,840		—		304,840
Borrowings	1,469		—		1,469		—		1,469
Accrued interest payable	66		—		66		—		66

Other Real Estate Owned (Tables)

3 Months Ended

Jun. 30, 2016

Other Real Estate [Abstract]

Schedule of Real Estate Properties [Table Text Block]



	June 30, 2016							December 31, 2015
	Balance		Valuation Allowance			Net OREO Balance		Balance		Valuation Allowance			Net OREO Balance
One–to–four family residential	$	2,506	$	(73	)	$	2,433	$	2,684	$	(63	)	$	2,621
Multi-family mortgage	774		(37		)	737		1,025		(74		)	951
Nonresidential real estate	1,307		(242		)	1,065		1,986		(239		)	1,747
Land	1,450		(312		)	1,138		2,358		(666		)	1,692
	$	6,037	$	(664	)	$	5,373	$	8,053	$	(1,042	)	$	7,011

Real Estate Owned, rollforward [Table Text Block]



	June 30, 2016							December 31, 2015
	Balance		Valuation Allowance			Net OREO Balance		Balance		Valuation Allowance			Net OREO Balance
One–to–four family residential	$	2,506	$	(73	)	$	2,433	$	2,684	$	(63	)	$	2,621
Multi-family mortgage	774		(37		)	737		1,025		(74		)	951
Nonresidential real estate	1,307		(242		)	1,065		1,986		(239		)	1,747
Land	1,450		(312		)	1,138		2,358		(666		)	1,692
	$	6,037	$	(664	)	$	5,373	$	8,053	$	(1,042	)	$	7,011

The following represents the roll forward of OREO and the composition of OREO properties:



	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2016			2015			2016			2015
Beginning balance	$	5,629		$	6,316		$	7,011		$	6,358
New foreclosed properties	56			578			121			1,167
Valuation adjustments	(10		)	(23		)	(129		)	(236		)
Sales	(302		)	(1,332		)	(1,630		)	(1,750		)
Ending balance	$	5,373		$	5,539		$	5,373		$	5,539

OREO valuation allowance, rollforward [Table Text Block]

Activity in the valuation allowance is as follows:



	For the Three Months Ended June 30,					For the Six Months Ended June 30,
	2016		2015			2016			2015
Beginning balance	$	654	$	1,109		$	1,042		$	896
Additions charged to expense	10		22			129			235
Reductions from sales of other real estate owned	—		(29		)	(507		)	(29		)
Ending balance	$	664	$	1,102		$	664		$	1,102

Earnings Per Share (Details) - USD ($)	3 Months Ended		6 Months Ended
Earnings Per Share (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share, Basic and Diluted [Abstract]
Net income available to common stockholders	$ 831,000	$ 2,224,000	$ 2,735,000	$ 4,210,000
Average common shares outstanding (shares)	19,827,581	20,811,856	19,991,561	20,956,110
Less:
Unvested restricted stock shares (shares)	2,690	9,682	5,290	13,201
Weighted average common shares outstanding (shares)	19,130,118	20,009,358	19,279,330	20,138,045
Unearned Employee Stock Ownership Plan shares	(694,773)	(792,816)	(706,941)	(804,864)
Add - Net effect of dilutive stock options and unvested restricted stock	317	4,215	312	4,160
Weighted average diluted common shares outstanding (shares)	19,130,435	20,013,573	19,279,642	20,142,205
Basic earnings per common share (usd per share)	$ 0.04	$ 0.11	$ 0.14	$ 0.21
Diluted earnings per common share (usd per share)	$ 0.04	$ 0.11	$ 0.14	$ 0.21
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
weighted average exercise price of antidilutive stock options	$ 12.99		$ 12.99

Securities - Fair Value of Securites (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Unrealized gains and losses recognized in accumulated other comprehensive income (loss)
Amortized Cost	$ 104,918	$ 113,865
Available for sale securities, accumulated gross unrealized gain before tax	801	928
Available for sale securities, accumulated gross unrealized loss before tax	(21)	(40)
Total Fair value	105,698	114,753
Certificates of deposit [Member]
Unrealized gains and losses recognized in accumulated other comprehensive income (loss)
Amortized Cost	81,376	87,901
Available for sale securities, accumulated gross unrealized gain before tax	0	0
Available for sale securities, accumulated gross unrealized loss before tax	0	0
Total Fair value	81,376	87,901
Equity mutual fund [Member]
Unrealized gains and losses recognized in accumulated other comprehensive income (loss)
Amortized Cost	500	500
Available for sale securities, accumulated gross unrealized gain before tax	17	7
Available for sale securities, accumulated gross unrealized loss before tax	0	0
Total Fair value	517	507
Mortgage - backed securities - residential [Member]
Unrealized gains and losses recognized in accumulated other comprehensive income (loss)
Amortized Cost	16,677	18,330
Available for sale securities, accumulated gross unrealized gain before tax	762	880
Available for sale securities, accumulated gross unrealized loss before tax	0	(30)
Total Fair value	17,439	19,180
Collateralized mortgage obligations - residential [Member]
Unrealized gains and losses recognized in accumulated other comprehensive income (loss)
Amortized Cost	6,345	7,111
Available for sale securities, accumulated gross unrealized gain before tax	22	41
Available for sale securities, accumulated gross unrealized loss before tax	(21)	(10)
Total Fair value	6,346	7,142
SBA-guaranteed loan participation certificates [Member]
Unrealized gains and losses recognized in accumulated other comprehensive income (loss)
Amortized Cost	20	23
Available for sale securities, accumulated gross unrealized gain before tax	0	0
Available for sale securities, accumulated gross unrealized loss before tax	0	0
Total Fair value	$ 20	$ 23

Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Amortized cost and fair values of securities
Due in one year or less, amortized cost	$ 81,376
Due in one year or less, fair value	81,376
Total amortized cost	104,918	$ 113,865
Total Fair value	105,698	114,753
Equity mutual fund [Member]
Amortized cost and fair values of securities
Total amortized cost	500	500
Total Fair value	517	507
Mortgage - backed securities - residential [Member]
Amortized cost and fair values of securities
Total amortized cost	16,677	18,330
Total Fair value	17,439	19,180
Collateralized mortgage obligations - residential [Member]
Amortized cost and fair values of securities
Total amortized cost	6,345	7,111
Total Fair value	6,346	7,142
SBA-guaranteed loan participation certificates [Member]
Amortized cost and fair values of securities
Total amortized cost	20	23
Total Fair value	$ 20	$ 23

Securities - Proceeds and Gross Gains (Losses) From Sale of Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Proceeds and Gross Gains (Losses) from Sale of Securities [Abstract]
Proceeds from Sale of Available-for-sale Securities, Equity			$ 46
Gain on Sale of Securities, Net	$ 0	$ 0	46	$ 0
Proceeds from Sale of Available-for-sale Securities			$ 46	$ 0

Securities - Unrealized Losses (Details) - USD ($)	6 Months Ended
Securities - Unrealized Losses (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Amortized cost and fair values of securities
Less than 12 Months, Fair Value			$ 0
12 Months or More, Fair Value			3,023,000
Fair Value, Total			3,023,000
Unrealized loss of securities
Less than 12 Months, Unrealized Loss		$ 0
12 Months or More, Unrealized Loss		(40,000)
Unrealized Loss, Total		(40,000)
Mortgage Backed Securities Residential [Member]
Amortized cost and fair values of securities
Less than 12 Months, Fair Value			0
12 Months or More, Fair Value			1,724,000
Fair Value, Total			1,724,000
Unrealized loss of securities
Less than 12 Months, Unrealized Loss		0
12 Months or More, Unrealized Loss		(30,000)
Unrealized Loss, Total		(30,000)
Collateralized mortgage obligations - residential [Member]
Amortized cost and fair values of securities
Less than 12 Months, Fair Value	$ 3,216,000		0
12 Months or More, Fair Value	1,171,000		1,299,000
Fair Value, Total	4,387,000		$ 1,299,000
Unrealized loss of securities
Less than 12 Months, Unrealized Loss	(13,000)	0
12 Months or More, Unrealized Loss	(8,000)	(10,000)
Unrealized Loss, Total	$ (21,000)	$ (10,000)

Securities - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
Securities - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Proceeds and Gross Gains (Losses) from Sale of Securities [Abstract]
Proceeds from Sale of Available-for-sale Securities	$ 46	$ 0

Loans Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Loans receivable
Total loans	$ 1,214,810		$ 1,240,327
Net deferred loan origination costs	1,658		1,621
Allowance for loan losses	(8,915)	$ (9,416)	(9,691)	$ (10,810)	$ (11,576)	$ (11,990)
Loans, net	1,207,553		1,232,257
One-to-four family residential real estate loans [Member]
Loans receivable
Total loans	147,876		159,501
Allowance for loan losses	(1,321)		(1,704)
Multi-family mortgage loans [Member]
Loans receivable
Total loans	504,158		506,026
Allowance for loan losses	(3,484)		(3,610)
Nonresidential real estate loans [Member]
Loans receivable
Total loans	191,685		226,735
Allowance for loan losses	(2,371)		(2,582)
Construction and land loans [Member]
Loans receivable
Total loans	1,767		1,313
Allowance for loan losses	(53)		(43)
Commercial loans [Member]
Loans receivable
Total loans	84,951		79,516
Allowance for loan losses	(645)		(654)
Commercial leases [Member]
Loans receivable
Total loans	282,629		265,405
Allowance for loan losses	(1,010)		(1,073)
Consumer loans [Member]
Loans receivable
Total loans	1,744		1,831
Allowance for loan losses	$ (31)		$ (25)

Loans Receivable - Loan Origination and Risk Management (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, amount	$ 1,214,810	$ 1,240,327
Multi-family mortgage loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, amount	504,158	506,026
Nonresidential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, amount	191,685	226,735
Commercial leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, amount	$ 282,629	$ 265,405

Loans Receivable - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Allowance for loan losses and the loans receivable by portfolio segment
Net deferred loan origination costs	$ 1,658	$ 1,621
Loans, net	$ 1,207,553	$ 1,232,257

Loans Receivable - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 9,416	$ 11,576	$ 9,691	$ 11,990
Loans charged off	2,020	516	2,136	751
Recoveries	204	238	535	783
Net charge-off	1,816	278	1,601	(32)
Provision for (recovery of) loan losses	1,315	(488)	825	(1,212)
Ending balance	8,915	10,810	8,915	10,810
One-to-four family residential real estate loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			1,704
Loans charged off	(355)	(99)	(407)	(202)
Recoveries	6	219	87	279
Ending balance	1,321		1,321
Multi-family mortgage loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			3,610
Loans charged off	(6)	(161)	(51)	(180)
Recoveries	9	4	146	8
Ending balance	3,484		3,484
Nonresidential real estate loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			2,582
Loans charged off	(1,657)	(252)	(1,660)	(263)
Recoveries	161	9	161	25
Ending balance	2,371		2,371
Construction and land loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			43
Recoveries	0	0	35	6
Ending balance	53		53
Commercial loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			654
Loans charged off	0	0	0	(98)
Recoveries	28	6	105	463
Ending balance	645		645
Commercial leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			1,073
Recoveries	0	0
Ending balance	1,010		1,010
Consumer loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			25
Loans charged off	(2)	(4)	(18)	(8)
Recoveries	0	$ 0	1	$ 1
Ending balance	$ 31		$ 31

Loans Receivable - Loans Individually Evaluated for Impairment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 1,214,810	$ 1,214,810	$ 1,240,327
Loans individually evaluated for impairment by class loans
Loan Balance	4,472	4,472	7,666
Recorded Investment	4,634	4,634	7,051
Partial Charge-off	697	697	639
Average Investment in Impaired Loans	5,530	5,655	7,920
Interest Income Recognized	18	40	238
Loan Balance (With an allowance recorded)	916	916	580
Recorded Investment (With an allowance recorded)	940	940	557
Partial Charge-offs (With an allowance recorded)	99	99	27
Allowance for loan losses (With an allowance recorded)	81	81	44
Average Investment in Impaired Loans (With an allowance recorded)	749	666	2,620
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0
Impaired Loan, Total	5,388	5,388	8,246
Recorded Investment, Total	5,574	5,574	7,608
Partial Charge-offs, Total	796	796	666
Average Investment in Impaired Loans, Total	6,279	6,321	10,540
Interest Income Recognized, Total	18	40	238
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	8,834	8,834	9,647
Net deferred loan origination costs	1,658	1,658	1,621
Loans and Leases Receivable, Allowance	8,915	8,915	9,691	$ 9,416	$ 10,810	$ 11,576	$ 11,990
Financing Receivable, Individually Evaluated for Impairment	5,594	5,594	7,650
Financing Receivable, Collectively Evaluated for Impairment	1,209,216	1,209,216	1,232,677
Loans, net	1,207,553	1,207,553	1,232,257
One-to-four family residential real estate loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	147,876	147,876	159,501
Loans individually evaluated for impairment by class loans
Loan Balance	2,930	2,930	3,203
Recorded Investment	2,996	2,996	2,637
Partial Charge-off	695	695	637
Average Investment in Impaired Loans	2,921	2,713	2,708
Interest Income Recognized	8	15	24
Allowance for loan losses (With an allowance recorded)	0	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,321	1,321	1,704
Loans and Leases Receivable, Allowance	1,321	1,321	1,704
Financing Receivable, Individually Evaluated for Impairment	3,210	3,210	2,672
Financing Receivable, Collectively Evaluated for Impairment	144,666	144,666	156,829
One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	41,802	41,802	44,540
Loans individually evaluated for impairment by class loans
Loan Balance	90	90	23
Recorded Investment	192	192	21
Partial Charge-off	2	2	2
Average Investment in Impaired Loans	192	119	859
Interest Income Recognized	0	0	0
Multi-family mortgage loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	504,158	504,158	506,026
Loans individually evaluated for impairment by class loans
Loan Balance	991	991	1,863
Recorded Investment	990	990	1,837
Partial Charge-off	0	0	0
Average Investment in Impaired Loans	936	1,197	1,962
Interest Income Recognized	10	21	78
Loan Balance (With an allowance recorded)	640	640	518
Recorded Investment (With an allowance recorded)	643	643	518
Partial Charge-offs (With an allowance recorded)	51	51	0
Allowance for loan losses (With an allowance recorded)	54	54	41
Average Investment in Impaired Loans (With an allowance recorded)	646	591	1,181
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	3,430	3,430	3,569
Loans and Leases Receivable, Allowance	3,484	3,484	3,610
Financing Receivable, Individually Evaluated for Impairment	1,633	1,633	2,879
Financing Receivable, Collectively Evaluated for Impairment	502,525	502,525	503,147
Multi Family Mortgage Loans without wholesale [Member] [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	303,222	303,222	318,157
Loans individually evaluated for impairment by class loans
Allowance for loan losses (With an allowance recorded)	54	54
Wholesale commercial lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	200,936	200,936	187,869
Loans individually evaluated for impairment by class loans
Loan Balance			511
Recorded Investment			507
Partial Charge-off			0
Average Investment in Impaired Loans			514
Interest Income Recognized			34
Nonresidential real estate loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	191,685	191,685	226,735
Loans individually evaluated for impairment by class loans
Loan Balance	461	461	2,066
Recorded Investment	456	456	2,049
Partial Charge-off	0	0	0
Average Investment in Impaired Loans	1,481	1,626	1,877
Interest Income Recognized	0	4	102
Loan Balance (With an allowance recorded)	276	276	62
Recorded Investment (With an allowance recorded)	297	297	39
Partial Charge-offs (With an allowance recorded)	48	48	27
Allowance for loan losses (With an allowance recorded)	27	27	3
Average Investment in Impaired Loans (With an allowance recorded)	103	75	1,439
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,344	2,344	2,579
Loans and Leases Receivable, Allowance	2,371	2,371	2,582
Financing Receivable, Individually Evaluated for Impairment	751	751	2,099
Financing Receivable, Collectively Evaluated for Impairment	190,934	190,934	224,636
Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	534	534	21
Land loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,233	1,233	1,292
Commercial loans - Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	35,041	35,041	29,991
Commercial loans - unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	27,695	27,695	31,809
Commercial loans - other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans			1,831
Consumer loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,744	1,744	1,831
Loans individually evaluated for impairment by class loans
Allowance for loan losses (With an allowance recorded)	0	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	31	31	25
Loans and Leases Receivable, Allowance	31	31	25
Financing Receivable, Individually Evaluated for Impairment	0	0	0
Financing Receivable, Collectively Evaluated for Impairment	1,744	1,744	1,831
Construction And Land Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,767	1,767	1,313
Loans individually evaluated for impairment by class loans
Allowance for loan losses (With an allowance recorded)	0	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	53	53	43
Loans and Leases Receivable, Allowance	53	53	43
Financing Receivable, Individually Evaluated for Impairment	0	0	0
Financing Receivable, Collectively Evaluated for Impairment	1,767	1,767	1,313
Commercial Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	84,951	84,951	79,516
Loans individually evaluated for impairment by class loans
Allowance for loan losses (With an allowance recorded)	0	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	645	645	654
Loans and Leases Receivable, Allowance	645	645	654
Financing Receivable, Individually Evaluated for Impairment	0	0	0
Financing Receivable, Collectively Evaluated for Impairment	84,951	84,951	79,516
Finance Leases Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	282,629	282,629	265,405
Loans individually evaluated for impairment by class loans
Allowance for loan losses (With an allowance recorded)	0	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,010	1,010	1,073
Loans and Leases Receivable, Allowance	1,010	1,010	1,073
Financing Receivable, Individually Evaluated for Impairment	0	0	0
Financing Receivable, Collectively Evaluated for Impairment	282,629	282,629	265,405
One to Four Family Residential Real Estate Loans-Owner occupied [Member] [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 106,074	$ 106,074	$ 114,961

Loans Receivable - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Reserve For Uncollected Loan Interest	$ 200	$ 200
Unpaid Principal Balance	5,660	3,949
Recorded Investment	4,400	3,572
Loans Past Due Over 90 Days, still accruing	828	0
One-to-four family residential real estate loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unpaid Principal Balance	2,881	2,704
Recorded Investment	2,433	2,263
Loans Past Due Over 90 Days, still accruing	0	0
One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unpaid Principal Balance	92	92
Recorded Investment	192	192
Loans Past Due Over 90 Days, still accruing	0	0
Multi-family mortgage loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unpaid Principal Balance	1,074	829
Recorded Investment	1,021	821
Loans Past Due Over 90 Days, still accruing	0	0
Wholesale Commercial Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unpaid Principal Balance		324
Loans Past Due Over 90 Days, still accruing		0
Nonresidential real estate loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unpaid Principal Balance	785
Recorded Investment	754	$ 296
Loans Past Due Over 90 Days, still accruing	0
Land loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Unpaid Principal Balance	828
Recorded Investment	0
Loans Past Due Over 90 Days, still accruing	$ 828

Loans Receivable - Troubled Debt Restructuring (Details)	6 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($) loan	Jun. 30, 2015 USD ($) loan	Dec. 31, 2015 USD ($)
Financing Receivable, Modifications [Line Items]
Outstanding Commitments To Borrowers Loans Classified As Troubled Debt Restructurings	$ 0		$ 0
Troubled Debt Restructurings
Financing receivable modifications	419,000		2,678,000
Troubled Debt Restructurings Value Of Decreased Interest Income	0	$ 0
Financing Receivable, Modifications, Increase In Allowance For Loan And Leases Losses	0	0
Troubled Debt Restructuring Charge Off	$ 0	$ 0
Number Of Loans Default Subsequent Modification \| loan	3	2
Loans Removed from TDR Status	$ 1,500,000
Accrual Loans [Member]
Troubled Debt Restructurings
Financing receivable modifications	187,000		2,504,000
Non Accrual Loans [Member]
Troubled Debt Restructurings
Financing receivable modifications	232,000		174,000
One-to-four family residential real estate loans - non-owner occupied loans [Member] \| Accrual Loans [Member]
Troubled Debt Restructurings
Financing receivable modifications	187,000		1,385,000
One-to-four family residential real estate loans - non-owner occupied loans [Member] \| Non Accrual Loans [Member]
Troubled Debt Restructurings
Financing receivable modifications	232,000		174,000
Multi-family mortgage loans [Member] \| Accrual Loans [Member]
Troubled Debt Restructurings
Financing receivable modifications	0		1,119,000
One to Four Family Residential Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Due To Extension Of Maturity Date	63,000	$ 63,000
Allowance for Loan and Lease Losses [Member]
Troubled Debt Restructurings
Valuation Allowances and Reserves, Balance	$ 0		$ 0

Loans Receivable - Modified Troubled Debt Restructuring (Details)	6 Months Ended
	Jun. 30, 2016 USD ($) loan	Jun. 30, 2015 USD ($) loan
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Increase In Allowance For Loan And Leases Losses	$ 0	$ 0
Troubled Debt Restructurings Value Of Decreased Interest Income	0	0
Loans modified	255,000	2,300,000
Loans by class modified as TDRs
Financing Receivable, Modifications, Increase In Allowance For Loan And Leases Losses	0	0
Troubled Debt Restructuring Charge Off	$ 0	$ 0
One-to-four family residential real estate loans [Member]
Loans by class modified as TDRs
Number of Loans \| loan	1	1
Pre-Modification outstanding recorded investment	$ 63,000	$ 63,000
Post-Modification outstanding recorded investment	63,000	63,000
Due to reduction in interest rate	0	0
Due to extension of maturity date	63,000	63,000
Due to permanent reduction in recorded investment	0	0
Total	$ 63,000	$ 63,000

Loans Receivable - Troubled Debt Restructuring - Payment Defaults (Details)	6 Months Ended
	Jun. 30, 2016 USD ($) loan	Jun. 30, 2015 USD ($) loan
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Increase In Allowance For Loan And Leases Losses	$ 0	$ 0
Financing Receivable, Modifications, Increase In Allowance For Loan And Leases Losses	$ 0	$ 0
Loans by class modified as TDRs with payment default
Number of loans \| loan	3	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 104,000	$ 77,000
One-to-four family residential real estate loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Pre Modification Recorded Investment	63,000	63,000
Loans by class modified as TDRs with payment default
Financing Receivable Post Modification Recorded Investment	$ 63,000	$ 63,000
Number Of Loans \| loan	1	1

Loans Receivable - Narrative (Details) - USD ($)	6 Months Ended		12 Months Ended
Loans Receivable - Narrative (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Valuation and Qualifying Accounts Disclosure [Line Items]
Reserve For Uncollected Loan Interest	$ 200,000		$ 200,000
Financing receivable modifications	419,000		2,678,000
Outstanding Commitments To Borrowers Loans Classified As Troubled Debt Restructurings	0		0
Troubled Debt Restructurings Value Of Decreased Interest Income	0	$ 0
Financing Receivable, Modifications, Increase In Allowance For Loan And Leases Losses	0	0
Charges regarding TDRs	0	0
Loans modified	255,000	$ 2,300,000
Allowance for Loan and Lease Losses [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation of reserves allocation	$ 0		$ 0

Fair Value - Financial Assets Accounted for at Fair Value (Details) - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	$ 859,000		$ 513,000
Schedule of Company's financial instruments measured at fair values
Total Fair value	105,698,000		114,753,000
Real Estate Acquired Through Foreclosure Fair Value	707,000		1,664,000
Certificates of deposit [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	81,376,000		87,901,000
Equity Funds [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	517,000		507,000
Residential Mortgage Backed Securities [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	17,439,000		19,180,000
Collateralized Debt Obligations [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	6,346,000		7,142,000
SBA-guaranteed loan participation certificates [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	20,000		23,000
Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	859,000		513,000
Schedule of Company's financial instruments measured at fair values
Total Fair value	105,698,000		114,753,000
Real Estate Acquired Through Foreclosure Fair Value	707,000		1,664,000
Servicing Asset at Fair Value, Amount	253,000		281,000
Nonrecurring [Member] \| Certificates of deposit [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	81,376,000		87,901,000
Nonrecurring [Member] \| Equity mutual fund [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	517,000		507,000
Nonrecurring [Member] \| Mortgage-backed securities - residential [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	17,439,000		19,180,000
Nonrecurring [Member] \| Collateralized mortgage obligations - residential [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	6,346,000		7,142,000
Nonrecurring [Member] \| SBA-guaranteed loan participation certificates [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	20,000		23,000
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	0		0
Schedule of Company's financial instruments measured at fair values
Total Fair value	517,000		507,000
Real Estate Acquired Through Foreclosure Fair Value	0		0
Servicing Asset at Fair Value, Amount	0		0
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Certificates of deposit [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Mortgage-backed securities - residential [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Collateralized mortgage obligations - residential [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| SBA-guaranteed loan participation certificates [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	0		0
Schedule of Company's financial instruments measured at fair values
Total Fair value	105,181,000		114,246,000
Real Estate Acquired Through Foreclosure Fair Value	0		0
Servicing Asset at Fair Value, Amount	253,000		281,000
Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member] \| Equity mutual fund [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	859,000		513,000
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Real Estate Acquired Through Foreclosure Fair Value	707,000		1,664,000
Servicing Asset at Fair Value, Amount	0		0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Certificates of deposit [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Equity mutual fund [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Mortgage-backed securities - residential [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Collateralized mortgage obligations - residential [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| SBA-guaranteed loan participation certificates [Member]
Schedule of Company's financial instruments measured at fair values
Total Fair value	0		0
One to Four Family Residential Real Estate Loans [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			42,000
One to Four Family Residential Real Estate Loans [Member] \| Nonrecurring [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	33,000		42,000
One to Four Family Residential Real Estate Loans [Member] \| Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	0		0
One to Four Family Residential Real Estate Loans [Member] \| Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	0		0
One to Four Family Residential Real Estate Loans [Member] \| Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	33,000
Multi Family Mortgage Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value			477,000
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			354,000
Multi Family Mortgage Loans [Member] \| Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	589,000		477,000
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			354,000
Multi Family Mortgage Loans [Member] \| Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	0		0
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			0
Multi Family Mortgage Loans [Member] \| Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	0		0
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			0
Multi Family Mortgage Loans [Member] \| Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	589,000
Commercial Real Estate [Member] \| Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	270,000		36,000
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	674,000		474,000
Commercial Real Estate [Member] \| Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	0		0
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	0		0
Commercial Real Estate [Member] \| Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	0		0
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	0		0
Commercial Real Estate [Member] \| Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value	270,000
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value	$ 674,000
Nonresidential Real Estate Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loan Fair Value			36,000
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			474,000
Land Loans [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			794,000
Land Loans [Member] \| Nonrecurring [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			794,000
Land Loans [Member] \| Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			0
Land Loans [Member] \| Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member]
Schedule of Company's financial instruments measured at fair values
Real Estate Acquired Through Foreclosure Fair Value			$ 0
Sales Comparison Valuation Technique [Member] \| One to Four Family Residential Real Estate Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description		Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Discount applied to valuation	Discount applied to valuation
Sales Comparison Valuation Technique [Member] \| Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Sales comparison
Sales Comparison Valuation Technique [Member] \| Multi Family Mortgage Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Sales comparison	Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Comparison between sales and income approaches	Comparison between sales and income approaches
Sales Comparison Valuation Technique [Member] \| Commercial Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Sales comparison	Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Comparison between sales and income approaches	Comparison between sales and income approaches
Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Sales comparison	Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Comparison between sales and income approaches	Comparison between sales and income approaches
Sales Comparison Valuation Technique [Member] \| Land Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description		Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description		Discount applied to valuation
Income Approach Valuation Technique [Member] \| Multi Family Mortgage Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Income approach	Income approach
Fair Value Measurements, Sensitivity Analysis, Description	Cap Rate	Cap Rate
Income Approach Valuation Technique [Member] \| Nonresidential Real Estate Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Income approach
Fair Value Measurements, Sensitivity Analysis, Description	Cap Rate

Fair Value - Assets Measured at Fair Value on a Non-Recurring Basis (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired Loans Carrying Amount	$ 900,000		$ 600,000
Impaired Loans Valuation Allowance	81,000		44,000
allowance for loan losses, specific reserve, increase or decrease	37,000	$ 405,000
Other Real Estate	1,000,000		2,500,000
Real Estate Owned, Valuation Allowance, Component	299,000		881,000
Fair Value, Impaired loans	859,000		513,000
Fair Value, Other real estate owned	707,000		1,664,000
Other Real Estate Owned Write Downs	129,000	236,000
Mortgage Servicing Rights (MSR) Impairment (Recovery)	0	$ 13,000
One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Other real estate owned			42,000
Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans			477,000
Fair Value, Other real estate owned			354,000
Nonresidential Real Estate Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans			36,000
Fair Value, Other real estate owned			474,000
Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	859,000		513,000
Fair Value, Other real estate owned	707,000		1,664,000
Mortgage servicing rights	253,000		281,000
Nonrecurring [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Other real estate owned	33,000		42,000
Nonrecurring [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	589,000		477,000
Fair Value, Other real estate owned			354,000
Nonrecurring [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	270,000		36,000
Fair Value, Other real estate owned	674,000		474,000
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	0		0
Fair Value, Other real estate owned	0		0
Mortgage servicing rights	0		0
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Other real estate owned	0		0
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	0		0
Fair Value, Other real estate owned			0
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	0		0
Fair Value, Other real estate owned	0		0
Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	0		0
Fair Value, Other real estate owned	0		0
Mortgage servicing rights	253,000		281,000
Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Other real estate owned	0		0
Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	0		0
Fair Value, Other real estate owned			0
Nonrecurring [Member] \| Significant Observable Inputs (Level 2) [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	0		0
Fair Value, Other real estate owned	0		0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	859,000		513,000
Fair Value, Other real estate owned	707,000		1,664,000
Mortgage servicing rights	0		$ 0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Other real estate owned	33,000
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	589,000
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Impaired loans	270,000
Fair Value, Other real estate owned	$ 674,000
Sales Comparison Valuation Technique [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description		Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Discount applied to valuation	Discount applied to valuation
Sales Comparison Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Sales comparison	Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Comparison between sales and income approaches	Comparison between sales and income approaches
Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Sales comparison	Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Comparison between sales and income approaches	Comparison between sales and income approaches
Sales Comparison Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Sales comparison	Sales comparison
Fair Value Measurements, Sensitivity Analysis, Description	Comparison between sales and income approaches	Comparison between sales and income approaches
Income Approach Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Income approach	Income approach
Fair Value Measurements, Sensitivity Analysis, Description	Cap Rate	Cap Rate
Income Approach Valuation Technique [Member] \| Nonresidential Real Estate Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Income approach
Fair Value Measurements, Sensitivity Analysis, Description	Cap Rate
Maximum [Member] \| impaired loans [Member] \| Sales Comparison Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments	89.30%		39.30%
Maximum [Member] \| impaired loans [Member] \| Sales Comparison Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments	1.24%		1.20%
Maximum [Member] \| impaired loans [Member] \| Income Approach Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Cap Rate	10.00%		8.75%
Maximum [Member] \| impaired loans [Member] \| Income Approach Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Cap Rate	8.50%
Maximum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate			2.80%
Maximum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			10.37%
Maximum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			1.46%
Maximum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			17.24%
Maximum [Member] \| Real Estate [Member] \| Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	54.90%
Minimum [Member] \| impaired loans [Member] \| Sales Comparison Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments	35.60%		39.30%
Minimum [Member] \| impaired loans [Member] \| Sales Comparison Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments	(10.20%)		1.20%
Minimum [Member] \| impaired loans [Member] \| Income Approach Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Cap Rate	10.00%		8.75%
Minimum [Member] \| impaired loans [Member] \| Income Approach Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Cap Rate	8.50%
Minimum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate			(0.35%)
Minimum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			(67.74%)
Minimum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			(15.60%)
Minimum [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			(7.70%)
Minimum [Member] \| Real Estate [Member] \| Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	(3.20%)
Weighted Average [Member] \| impaired loans [Member] \| Sales Comparison Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments	43.00%		39.30%
Weighted Average [Member] \| impaired loans [Member] \| Sales Comparison Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments	(9.00%)		1.20%
Weighted Average [Member] \| impaired loans [Member] \| Income Approach Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Cap Rate	10.00%		8.75%
Weighted Average [Member] \| impaired loans [Member] \| Income Approach Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Cap Rate	8.50%
Weighted Average [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| One-to-four family residential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate			0.03%
Weighted Average [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Multi-family mortgage loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			(13.00%)
Weighted Average [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			(5.00%)
Weighted Average [Member] \| Real Estate [Domain] \| Sales Comparison Valuation Technique [Member] \| Nonresidential real estate loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Comparability Adjustments			6.00%
Weighted Average [Member] \| Real Estate [Member] \| Sales Comparison Valuation Technique [Member] \| Nonresidential Real Estate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	11.00%

Fair Value - Carrying Amount and Estimated Fair Value of Finanical Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 85,557	$ 59,377	$ 77,426	$ 59,581
Financial assets
Securities, carrying amount	105,698	114,753
Loans receivable, net of allowance for loan losses, carrying amounts	1,207,553	1,232,257
FHLBC stock, carrying amount	6,257	6,257
Accrued interest receivable, carrying amount	4,000	4,226
Estimate of Fair Value, Fair Value Disclosure [Member]
Financial assets
Available-for-sale Securities, Fair Value Disclosure	105,698	114,753
Loans Receivable, Fair Value Disclosure	1,231,847	1,241,304
Accounts Receivable, Fair Value Disclosure	4,000	4,226
Financial liabilities
Cash and Cash Equivalents, Fair Value Disclosure	85,557	59,377
Demand Deposit Accounts Fair Value Disclosure	231,928	254,830
Deposits Savings Deposits Fair Value Disclosure	158,669	156,752
Now Money Market Accounts Fair Value Disclosure	573,698	578,636
Certificates Of Deposit Fair Value Disclosure	304,840	222,026
Short Term Borrowings Fair Value Disclosure	1,469	64,318
Accrued Liabilities, Fair Value Disclosure	66	39
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 1 [Member]
Financial assets
Loans Receivable, Fair Value Disclosure		0
Accounts Receivable, Fair Value Disclosure		0
Financial liabilities
Cash and Cash Equivalents, Fair Value Disclosure	11,509	13,192
Demand Deposit Accounts Fair Value Disclosure		0
Deposits Savings Deposits Fair Value Disclosure		0
Now Money Market Accounts Fair Value Disclosure		0
Certificates Of Deposit Fair Value Disclosure		0
Short Term Borrowings Fair Value Disclosure		0
Accrued Liabilities, Fair Value Disclosure		0
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 2 [Member]
Financial assets
Available-for-sale Securities, Fair Value Disclosure	105,181	114,246
Loans Receivable, Fair Value Disclosure	1,230,988	1,240,791
Accounts Receivable, Fair Value Disclosure	4,000	4,226
Financial liabilities
Cash and Cash Equivalents, Fair Value Disclosure	74,048	46,185
Demand Deposit Accounts Fair Value Disclosure	231,928	254,830
Deposits Savings Deposits Fair Value Disclosure	158,669	156,752
Now Money Market Accounts Fair Value Disclosure	573,698	578,636
Certificates Of Deposit Fair Value Disclosure	304,840	222,026
Short Term Borrowings Fair Value Disclosure		64,318
Accrued Liabilities, Fair Value Disclosure	66	39
Estimate of Fair Value, Fair Value Disclosure [Member] \| Fair Value, Inputs, Level 3 [Member]
Financial assets
Loans Receivable, Fair Value Disclosure	859	513
Reported Value Measurement [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and Cash Equivalents, at Carrying Value	85,557	59,377
Financial assets
Securities, carrying amount	105,698	114,753
Loans receivable, net of allowance for loan losses, carrying amounts	1,207,553	1,232,257
FHLBC stock, carrying amount	6,257	6,257
Accrued interest receivable, carrying amount	4,000	4,226
Financial liabilities
Demand Deposit Accounts	231,928	254,830
Deposits, Savings Deposits	158,669	156,752
Now Money Market Accounts	573,698	578,636
Certificates of Deposit, at Carrying Value	304,307	222,701
Short-term Debt	1,469	64,318
Accrued Interest Payable	66	39
Equity Funds [Member]
Financial assets
Securities, carrying amount	$ 517	$ 507

Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Other Real Estate Owned (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Other Real Estate Owned At Carrying Value	$ 5,373	$ 5,539	$ 5,373	$ 5,539	$ 5,629	$ 7,011	$ 6,316	$ 6,358
Real Estate Owned, Valuation Allowance, Amounts Applied	0	(29)	(507)	(29)
Real Estate Owned, Valuation Allowance, Valuation Increase	10	22	129	235
Real Estate Owned, Valuation Allowance	(664)	(1,102)	(664)	(1,102)	$ (654)	(1,042)	$ (1,109)	$ (896)
Other Real Estate, Disposals	(302)	(1,332)	(1,630)	(1,750)
Other Real Estate, Valuation Adjustments	(10)	(23)	(129)	(236)
Other Real Estate, Additions	56	$ 578	121	$ 1,167
Other real estate owned at carrying value before valuation allowance	6,037		6,037			8,053
Multi Family Mortgage Loans [Member]
Other Real Estate Owned At Carrying Value	737		737			951
Real Estate Owned, Valuation Allowance	37		37			74
Other real estate owned at carrying value before valuation allowance	774		774			1,025
One to Four Family Residential Real Estate Loans [Member]
Other Real Estate Owned At Carrying Value	2,433		2,433			2,621
Real Estate Owned, Valuation Allowance	73		73			63
Other real estate owned at carrying value before valuation allowance	2,506		2,506			2,684
Nonresidential Real Estate [Member]
Other Real Estate Owned At Carrying Value	1,065		1,065			1,747
Real Estate Owned, Valuation Allowance	242		242			239
Other real estate owned at carrying value before valuation allowance	1,307		1,307			1,986
Land [Member]
Other Real Estate Owned At Carrying Value	1,138		1,138			1,692
Real Estate Owned, Valuation Allowance	312		312			666
Other real estate owned at carrying value before valuation allowance	$ 1,450		$ 1,450			$ 2,358

Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Abstract]
Available-for-sale Securities Pledged as Collateral	$ 5,500	$ 6,000
Carrying Value of Federal Funds Purchased, Securities Sold under Agreements to Repurchase, and Deposits Received for Securities Loaned	$ 1,469	$ 2,318

Label	Element	Value
Dividends, Common Stock, Cash	us-gaap_DividendsCommonStockCash	$ (1,688,000)
Retained Earnings [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	2,224,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	831,000
Dividends, Common Stock, Cash	us-gaap_DividendsCommonStockCash	$ (1,688,000)

Loans Receivable - Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	$ 5,350	$ 7,863
Recorded Investment, Loans Not Past Due	1,202,566	1,226,669
Recorded investment, total	1,207,916	1,234,532
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		21
Recorded Investment, Loans Not Past Due	1,751	1,819
Recorded investment, total	1,751	1,840
Commercial Leases Investment Rated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	121	413
Recorded Investment, Loans Not Past Due	200,115	170,859
Recorded investment, total	200,236	171,272
Commercial Loans Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Recorded Investment, Loans Not Past Due	83,999	95,800
Recorded investment, total	83,999	95,800
Commercial Loans Health Care [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Loans Not Past Due	27,726	31,862
Recorded investment, total	27,726	31,862
Commercial Loans Municipal [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Recorded Investment, Loans Not Past Due	22,381	17,873
Recorded investment, total	22,381	17,873
Commercial loans - unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Commercial loans - Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	154
Recorded Investment, Loans Not Past Due	35,121	29,890
Recorded investment, total	35,121	30,044
Land Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	842	0
Recorded Investment, Loans Not Past Due	398	1,279
Recorded investment, total	1,240	1,279
Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Recorded Investment, Loans Not Past Due	537	21
Recorded investment, total	537	21
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	754	296
Recorded Investment, Loans Not Past Due	187,802	223,018
Recorded investment, total	188,556	223,314
Wholesale Commercial Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Recorded Investment, Loans Not Past Due	199,773	188,178
Recorded investment, total	199,773	188,178
Multi Family Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	1,020	1,755
Recorded Investment, Loans Not Past Due	298,492	312,620
Recorded investment, total	299,512	314,375
One To Four Family Residential Real Estate Loans Non Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	198	655
Recorded Investment, Loans Not Past Due	41,304	43,557
Recorded investment, total	41,502	44,212
One to Four Family Residential Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	2,415	4,569
Recorded Investment, Loans Not Past Due	103,167	109,893
Recorded investment, total	105,582	114,462
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	217	3,025
Financing Receivables, 30 to 59 Days Past Due [Member] \| Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		21
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Leases Investment Rated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	121	50
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Loans Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Loans Municipal [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial loans - unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial loans - Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	4
Financing Receivables, 30 to 59 Days Past Due [Member] \| Land Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Wholesale Commercial Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Multi Family Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	651
Financing Receivables, 30 to 59 Days Past Due [Member] \| One To Four Family Residential Real Estate Loans Non Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	2	299
Financing Receivables, 30 to 59 Days Past Due [Member] \| One to Four Family Residential Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	94	2,000
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	303	1,532
Financing Receivables, 60 to 89 Days Past Due [Member] \| Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Leases Investment Rated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		363
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Loans Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Loans Health Care [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Loans Municipal [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial loans - unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial loans - Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	150
Financing Receivables, 60 to 89 Days Past Due [Member] \| Land Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Wholesale Commercial Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Multi Family Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	283
Financing Receivables, 60 to 89 Days Past Due [Member] \| One To Four Family Residential Real Estate Loans Non Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	4	164
Financing Receivables, 60 to 89 Days Past Due [Member] \| One to Four Family Residential Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	299	572
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Leases Investment Rated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	4,830	3,306
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Loans Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Loans Health Care [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Loans Municipal [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial loans - unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial loans - Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Land Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	842	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due		0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	754	296
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Wholesale Commercial Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Multi Family Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	1,020	821
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| One To Four Family Residential Real Estate Loans Non Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	192	192
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| One to Four Family Residential Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment, Total Past Due	$ 2,022	$ 1,997

Loans Receivable - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 5,350	$ 7,863
Financing Receivable Credit Quality Indicators
Total loans	1,214,810	1,240,327
One-to-four family residential real estate loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,415	4,569
Financing Receivable Credit Quality Indicators
Total loans	147,876	159,501
One to Four Family Residential Real Estate Loans-Owner occupied [Member] [Member]
Financing Receivable Credit Quality Indicators
Total loans	106,074	114,961
One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	198	655
Financing Receivable Credit Quality Indicators
Total loans	41,802	44,540
Multi-family mortgage loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,020	1,755
Financing Receivable Credit Quality Indicators
Total loans	504,158	506,026
Multi Family Mortgage Loans without wholesale [Member] [Member]
Financing Receivable Credit Quality Indicators
Total loans	303,222	318,157
Wholesale commercial lending [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable Credit Quality Indicators
Total loans	200,936	187,869
Nonresidential Real Estate Loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	191,685	226,735
Construction loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable Credit Quality Indicators
Total loans	534	21
Land loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	842	0
Financing Receivable Credit Quality Indicators
Total loans	1,233	1,292
Commercial loans - Secured [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	154
Financing Receivable Credit Quality Indicators
Total loans	35,041	29,991
Commercial loans - Unsecured [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable Credit Quality Indicators
Total loans	27,695	31,809
Commercial Loans - Municipal loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable Credit Quality Indicators
Total loans	22,215	17,716
Commercial Loans - Warehouse Lines [Member]
Financing Receivable Credit Quality Indicators
Total loans		0
Commercial Loans - Health Care [Member]
Financing Receivable Credit Quality Indicators
Total loans	199,020	170,100
Aviation (Member) [Member]
Financing Receivable Credit Quality Indicators
Total loans	83,609	95,305
Commercial loans - other [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable Credit Quality Indicators
Total loans		1,831
Commercial Leases - Investment Rated [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	121	413
Consumer loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0
Financing Receivable Credit Quality Indicators
Total loans	1,744	1,831
Nonaccrual [Member]
Financing Receivable Credit Quality Indicators
Total loans	3,821	3,251
Nonaccrual [Member] \| One-to-four family residential real estate loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	1,854	1,936
Nonaccrual [Member] \| One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	192	192
Nonaccrual [Member] \| Multi-family mortgage loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	1,024	828
Nonaccrual [Member] \| Wholesale commercial lending [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Nonaccrual [Member] \| Nonresidential Real Estate Loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	751	295
Nonaccrual [Member] \| Construction loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Nonaccrual [Member] \| Land loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Nonaccrual [Member] \| Commercial loans - Secured [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Nonaccrual [Member] \| Commercial loans - Unsecured [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Nonaccrual [Member] \| Commercial Loans - Municipal loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Nonaccrual [Member] \| Commercial Loans - Health Care [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Nonaccrual [Member] \| Commercial loans - other [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Substandard [Member]
Financing Receivable Credit Quality Indicators
Total loans	6,611	12,451
Substandard [Member] \| One-to-four family residential real estate loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	335	576
Substandard [Member] \| One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	271
Substandard [Member] \| Multi-family mortgage loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	2,025	4,656
Substandard [Member] \| Wholesale commercial lending [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	511
Substandard [Member] \| Nonresidential Real Estate Loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	3,194	4,981
Substandard [Member] \| Construction loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Substandard [Member] \| Land loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	830	842
Substandard [Member] \| Commercial loans - Secured [Member]
Financing Receivable Credit Quality Indicators
Total loans	225	614
Substandard [Member] \| Commercial loans - Unsecured [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Substandard [Member] \| Commercial Loans - Municipal loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Substandard [Member] \| Commercial Loans - Health Care [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Substandard [Member] \| Commercial loans - other [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Substandard [Member] \| Consumer loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	2	0
Pass [Member]
Financing Receivable Credit Quality Indicators
Total loans	1,202,965	1,222,462
Pass [Member] \| One-to-four family residential real estate loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	103,885	112,449
Pass [Member] \| One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	41,397	43,858
Pass [Member] \| Multi-family mortgage loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	299,839	312,329
Pass [Member] \| Wholesale commercial lending [Member]
Financing Receivable Credit Quality Indicators
Total loans	200,936	187,358
Pass [Member] \| Nonresidential Real Estate Loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	187,740	219,859
Pass [Member] \| Construction loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	534	21
Pass [Member] \| Land loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	403	450
Pass [Member] \| Commercial loans - Secured [Member]
Financing Receivable Credit Quality Indicators
Total loans	34,816	29,377
Pass [Member] \| Commercial loans - Unsecured [Member]
Financing Receivable Credit Quality Indicators
Total loans	27,695	31,809
Pass [Member] \| Commercial Loans - Municipal loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	21,565	17,716
Pass [Member] \| Commercial Loans - Health Care [Member]
Financing Receivable Credit Quality Indicators
Total loans	199,020	170,100
Pass [Member] \| Aviation (Member) [Member]
Financing Receivable Credit Quality Indicators
Total loans	83,393	95,305
Pass [Member] \| Commercial loans - other [Member]
Financing Receivable Credit Quality Indicators
Total loans	1,742	1,831
Special Mention [Member]
Financing Receivable Credit Quality Indicators
Total loans	1,413	2,163
Special Mention [Member] \| One-to-four family residential real estate loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Special Mention [Member] \| One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	213	219
Special Mention [Member] \| Multi-family mortgage loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	334	344
Special Mention [Member] \| Wholesale commercial lending [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Special Mention [Member] \| Nonresidential Real Estate Loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	1,600
Special Mention [Member] \| Construction loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Special Mention [Member] \| Land loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Special Mention [Member] \| Commercial loans - Secured [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Special Mention [Member] \| Commercial loans - Unsecured [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Special Mention [Member] \| Commercial Loans - Municipal loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	650	0
Special Mention [Member] \| Commercial Loans - Health Care [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Special Mention [Member] \| Commercial loans - other [Member]
Financing Receivable Credit Quality Indicators
Total loans	216	0
Special Mention [Member] \| Consumer loans [Member]
Financing Receivable Credit Quality Indicators
Total loans	0	0
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	217	3,025
Financing Receivables, 30 to 59 Days Past Due [Member] \| One-to-four family residential real estate loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	94	2,000
Financing Receivables, 30 to 59 Days Past Due [Member] \| One-to-four family residential real estate loans - non-owner occupied loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	2	299
Financing Receivables, 30 to 59 Days Past Due [Member] \| Multi-family mortgage loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	651
Financing Receivables, 30 to 59 Days Past Due [Member] \| Wholesale commercial lending [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Construction loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due		0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Land loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial loans - Secured [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	4
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial loans - Unsecured [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Loans - Municipal loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial loans - other [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Leases - Investment Rated [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 121	50
Financing Receivables, 30 to 59 Days Past Due [Member] \| Consumer loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Past Due		$ 21