0001437749-20-021833 | 10-Q | XBRL Viewer

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Document And Entity Information - shares	9 Months Ended
Document And Entity Information - shares	Sep. 30, 2020	Oct. 26, 2020
Document Information [Line Items]
Entity Central Index Key	0001303942
Entity Registrant Name	BankFinancial CORP
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	0-51331
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	75-3199276
Entity Address, Address Line One	60 North Frontage Road
Entity Address, City or Town	Burr Ridge
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60527
City Area Code	800
Local Phone Number	894-6900
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	BFIN
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		14,780,628

Consolidated Statements of Financial Condition (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets
Cash and due from other financial institutions	$ 13,740	$ 9,785
Interest-bearing deposits in other financial institutions	415,925	180,540
Cash and cash equivalents	429,665	190,325
Securities, at fair value	42,048	60,193
Loans receivable, net of allowance for loan losses: September 30, 2020, $8,011 and December 31, 2019, $7,632	1,065,892	1,168,008
Other real estate owned, net	110	186
Stock in Federal Home Loan Bank ("FHLB") and Federal Reserve Bank ("FRB"), at cost	7,490	7,490
Premises and equipment, net	24,241	24,346
Accrued interest receivable	4,354	4,563
Bank-owned life insurance	18,996	18,945
Deferred taxes	3,520	3,873
Other assets	8,627	10,086
Total assets	1,604,943	1,488,015
Liabilities
Noninterest-bearing	328,915	210,762
Interest-bearing	1,073,329	1,073,995
Total deposits	1,402,244	1,284,757
Borrowings	4,000	61
Advance payments by borrowers for taxes and insurance	9,998	10,222
Accrued interest payable and other liabilities	16,304	18,603
Total liabilities	1,432,546	1,313,643
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; 14,824,628 shares issued at September 30, 2020 and 15,278,464 issued at December 31, 2019	148	153
Additional paid-in capital	108,231	112,420
Retained earnings	63,787	61,573
Accumulated other comprehensive income	231	226
Total stockholders’ equity	172,397	174,372
Total liabilities and stockholders’ equity	$ 1,604,943	$ 1,488,015

Consolidated Statements of Financial Condition (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Allowance for loan losses	$ 8,011	$ 7,632
Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, shares authorized (in shares)	25,000,000	25,000,000
Preferred Stock, shares issued (in shares)	0	0
Preferred Stock, shares outstanding (in shares)	0	0
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	100,000,000	100,000,000
Common Stock, shares issued (in shares)	14,890,628	15,278,464

Consolidated Statements of Operations (Unaudited) - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2020

Sep. 30, 2019

Sep. 30, 2020

Sep. 30, 2019

Interest and dividend income

Loans, including fees

$ 12,027

$ 15,371

$ 38,307

$ 46,112

Securities

183

508

758

1,712

Other

275

749

1,267

1,852

Total interest income

12,485

16,628

40,332

49,676

Interest expense

Deposits

1,488

3,385

6,041

10,023

Borrowings

Total interest expense

1,488

3,386

6,041

10,112

Net interest income

10,997

13,242

34,291

39,564

Provision for (recovery of ) loan losses

(187)

(134)

326

3,736

Net interest income after provision for (recovery of) loan losses

11,184

13,376

33,965

35,828

Noninterest income

Deposit service charges and fees

833

983

2,456

2,887

Loan servicing fees

^[1]

189

178

Mortgage brokerage and banking fees

^[1]

Gain on sale of equity securities

^[1]

295

Loss on disposal of other assets

(2)

(19)

Trust and insurance commissions and annuities income

222

198

728

627

Earnings on bank-owned life insurance

^[1]

105

Other

^[1]

111

129

319

374

Total noninterest income

1,264

1,474

3,825

4,524

Noninterest expense

Compensation and benefits

5,398

5,218

16,084

16,128

Office occupancy and equipment

1,860

1,879

5,383

5,348

Advertising and public relations

135

182

405

488

Information technology

781

892

2,453

2,351

Professional fees

307

213

831

757

Supplies, telephone, and postage

288

312

875

1,037

Amortization of intangibles

Nonperforming asset management

154

129

Operations of other real estate owned, net

FDIC insurance premiums

105

(127)

241

127

Other

827

891

2,198

2,645

Total noninterest expense

9,787

9,509

28,664

29,079

Income before income taxes

2,661

5,341

9,126

11,273

Income tax expense

713

1,417

2,408

2,991

Net income

$ 1,948

$ 3,924

$ 6,718

$ 8,282

Basic and diluted earnings per common share (in dollars per share)

$ 0.13

$ 0.26

$ 0.45

$ 0.53

Basic and diluted weighted average common shares outstanding (in shares)

14,842,150

15,373,964

15,008,271

15,679,927

[1]	Not within the scope of ASC 606

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income	$ 1,948	$ 3,924	$ 6,718	$ 8,282
Unrealized holding gain (loss) arising during the period	(4)	(16)	7	9
Tax effect	0	5	(2)	(2)
Net of tax	(4)	(11)	5	7
Comprehensive income	$ 1,944	$ 3,913	$ 6,723	$ 8,289

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Consolidated Statements of Changes In Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2018	$ 165	$ 130,547	$ 56,167	$ 271	$ 187,150
Net income	0	0	8,282	0	8,282
Other comprehensive income (loss), net of tax	0	0	0	7	7
Cash dividends declared on common stock	0	0	(4,731)	0	(4,731)
Repurchase and retirement of common stock	(11)	(16,830)	0	0	(16,841)
Balance at Sep. 30, 2019	154	113,717	59,718	278	173,867
Balance at Jun. 30, 2019	154	113,717	57,331	289	171,491
Net income	0	0	3,924	0	3,924
Other comprehensive income (loss), net of tax	0	0	0	(11)	(11)
Cash dividends declared on common stock	0	0	(1,537)	0	(1,537)
Balance at Sep. 30, 2019	154	113,717	59,718	278	173,867
Balance at Dec. 31, 2019	153	112,420	61,573	226	174,372
Net income	0	0	6,718	0	6,718
Other comprehensive income (loss), net of tax	0	0	0	5	5
Cash dividends declared on common stock	0	0	(4,504)	0	(4,504)
Repurchase and retirement of common stock	(5)	(4,189)	0	0	(4,194)
Balance at Sep. 30, 2020	148	108,231	63,787	231	172,397
Balance at Jun. 30, 2020	149	108,748	63,322	235	172,454
Net income	0	0	1,948	0	1,948
Other comprehensive income (loss), net of tax	0	0	0	(4)	(4)
Cash dividends declared on common stock	0	0	(1,483)	0	(1,483)
Repurchase and retirement of common stock	(1)	(517)	0	0	(518)
Balance at Sep. 30, 2020	$ 148	$ 108,231	$ 63,787	$ 231	$ 172,397

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

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+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

+ Details

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References + Details

Consolidated Statements of Changes In Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Cash dividends declared on common stock (in dollars per share)	$ 0.10	$ 0.10	$ 0.30	$ 0.30
Repurchase and retirement of common stock (in shares)	66,000		453,836	1,107,550

Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands

9 Months Ended

Sep. 30, 2020

Sep. 30, 2019

Cash flows from operating activities

Net income

$ 6,718

$ 8,282

Adjustments to reconcile to net income to net cash from operating activities

Provision for (recovery of ) loan losses

326

3,736

Depreciation

1,236

1,211

Amortization of premiums and discounts on securities

Amortization of intangibles

Amortization of servicing assets

Net change in net deferred loan origination costs

545

127

Gain on sale of other real estate owned

(22)

(112)

Gain on sale of equity securities

(295)

Loss on disposal of other assets

Other real estate owned valuation adjustments

Earnings on bank-owned life insurance

^[1]

(51)

(105)

Net change in:

Accrued interest receivable

209

189

Other assets

1,942

4,379

Accrued interest payable and other liabilities

(2,399)

(3,570)

Net cash from operating activities

8,593

14,013

Cash flows from investing activities

Proceeds from maturities

55,599

79,210

Proceeds from principal repayments

2,206

2,234

Proceeds from sale of equity securities

3,722

Purchases of securities

(39,657)

(58,700)

Net decrease in loans receivable

101,108

105,846

Purchase of FHLB and FRB stock

(4)

Redemption of FHLB and FRB stock

540

Proceeds from sale of other real estate owned

120

1,107

Purchase of premises and equipment, net

(1,133)

(623)

Net cash from investing activities

118,243

133,332

Cash flows from financing activities

Deposits

117,487

(63,659)

Borrowings

3,939

(19,796)

Advance payments by borrowers for taxes and insurance

(224)

271

Repurchase and retirement of common stock

(4,194)

(16,841)

Cash dividends paid on common stock

(4,504)

(4,731)

Net cash from (used in) financing activities

112,504

(104,756)

Net change in cash and cash equivalents

239,340

42,589

Beginning cash and cash equivalents

190,325

98,204

Ending cash and cash equivalents

429,665

140,793

Supplemental disclosures of cash flow information:

Interest paid

6,047

10,295

Income taxes paid

155

349

Income taxes refunded

Loans transferred to other real estate owned

Recording of right of use asset in exchange for lease obligations in other assets and other liabilities

$ 111

$ 6,694

[1]	Not within the scope of ASC 606

Note 1 - Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

NOTE 1 - 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, NA (the “Bank”). The interim unaudited consolidated financial statements include the accounts and transactions of BankFinancial Corporation, the Bank, and the Bank’s wholly-owned subsidiaries, Financial Assurance Services, Inc. and BFIN Asset Recovery Company, LLC (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. Such adjustments are the only adjustments reflected in the accompanying financial statements. All significant intercompany accounts and transactions have been eliminated. The results of operations for the three and nine month periods ended September 30, 2020 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2020 or for any other period.

Certain information and note disclosures normally included in financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“US GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”).

Use of Estimates: The preparation of the consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Although these estimates and assumptions are based on the best available information, actual information, actual results could differ from those estimates.

COVID-19: The Company has evaluated subsequent events for potential recognition and/or disclosure through the date the unaudited consolidated financial statements included in this Quarterly Report on Form 10-Q were issued. On March 11, 2020, the World Health Organization declared the outbreak of a novel coronavirus (“COVID-19”) as a global pandemic, which continues to spread throughout the United States and around the world. The declaration of a global pandemic indicates that almost all public commerce and related business activities must be, to varying degrees, curtailed with the goal of decreasing the rate of new infections. The outbreak of COVID-19 has adversely impacted, and could further adversely impact, a broad range of industries in which the Company’s customers operate and impair their ability to fulfill their financial obligations to the Company. On March 3, 2020, the Federal Open Market Committee reduced the target federal funds rate by 50 basis points to 1.00% to 1.25%. This rate was further reduced to a target range of 0% to 0.25% on March 16, 2020. These reductions in interest rates and other effects of the COVID-19 outbreak may adversely affect the Company’s financial condition and results of operations. As a result of the spread of the COVID-19 coronavirus, economic uncertainties have arisen which are likely to negatively impact net interest income and noninterest income. Other financial impacts could occur though such potential impact is unknown at this time.

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, 2019, as filed with the Securities and Exchange Commission.

Newly Issued Not Yet Effective Accounting Standards

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. For SEC filers who are smaller reporting companies, such as the Company, ASU 2016-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022.

Note 2 - Earnings Per Share

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Earnings Per Share [Text Block]

NOTE 2 - EARNINGS PER SHARE

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.

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*		*2019*
Net income available to common stockholders	$	1,948	$	3,924	$	6,718	$	8,282
Basic and diluted weighted average common shares outstanding		14,842,150		15,373,964		15,008,271		15,679,927
Basic and diluted earnings per common share	$	0.13	$	0.26	$	0.45	$	0.53

Note 3 - Securities

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

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

NOTE 3 - SECURITIES

The fair value of securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income is as follows:

	*Amortized Cost*		*Gross Unrealized Gains*		*Gross Unrealized Losses*			*Fair Value*
Available-for-Sale Securities
September 30, 2020
Certificates of deposit	$	32,724	$	—	$	—		$	32,724
Municipal securities		503		9		—			512
Mortgage-backed securities - residential		6,124		305		—			6,429
Collateralized mortgage obligations - residential		2,381		4		(2	)		2,383
	$	41,732	$	318	$	(2	)	$	42,048
December 31, 2019
Certificates of deposit	$	48,666	$	—	$	—		$	48,666
Municipal securities		505		8		—			513
Mortgage-backed securities - residential		7,727		310		—			8,037
Collateralized mortgage obligations - residential		2,986		4		(13	)		2,977
	$	59,884	$	322	$	(13	)	$	60,193

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.

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.

	*September 30, 2020*
	*Amortized Cost*		*Fair Value*
Due in one year or less	$	32,576	$	32,577
Due after one year through five years		651		659
		33,227		33,236
Mortgage-backed securities - residential		6,124		6,429
Collateralized mortgage obligations - residential		2,381		2,383
	$	41,732	$	42,048

Investment securities available-for-sale with carrying values of $1.2 million and $2.0 million at September 30, 2020 and December 31, 2019, respectively, were pledged as collateral on customer repurchase agreements and for other purposes as required or permitted by law.

Sales of equity securities were as follows:

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*		*2019*
Proceeds	$	—	$	—	$	—	$	3,722
Gross gains		—		—		—		295
Gross losses		—		—		—		—

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

			*Less than 12 Months*							*12 Months or More*							*Total*
	*Count*		*Fair Value*		*Unrealized Loss*			*Count*		*Fair Value*		*Unrealized Loss*			*Count*		*Fair Value*		*Unrealized Loss*
September 30, 2020
Collateralized mortgage obligations - residential		—	$	—	$	—			3	$	1,695	$	(2	)		3	$	1,695	$	(2	)

December 31, 2019
Collateralized mortgage obligations - residential		3	$	1,566	$	(10	)		1	$	937	$	(3	)		4	$	2,503	$	(13	)

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 September 30, 2020, 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.

The Bank, as a member of Visa USA, received 51,404 unrestricted shares of Visa, Inc. Class B common stock in connection with Visa, Inc.’s initial public offering in 2007 and a related retroactive responsibility plan. The retroactive responsibility plan obligates all former Visa USA members to indemnify Visa USA, in proportion to their equity interests in Visa USA, for certain litigation losses and expenses, including settlement expenses, for the lawsuits covered by the retrospective responsibility plan. Due to the restrictions that the retrospective responsibility plan imposes on the Company’s Visa, Inc. Class B shares, the Company did not record the Class B shares as an asset.

The Bank sold 25,702 shares of Visa Class B common stock in the fourth quarter of 2018 and the remaining 25,702 shares of Visa Class B common stock in the first quarter of 2019 and recorded an aggregate gain of $295,000.

Note 4 - Loans Receivable

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

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

NOTE 4 - LOANS RECEIVABLE

Loans receivable are as follows:

	*September 30, 2020*			*December 31, 2019*
One-to-four family residential real estate	$	44,812		$	55,750
Multi-family mortgage		522,825			563,750
Nonresidential real estate		124,477			134,674
Commercial loans and leases		379,638			418,343
Consumer		1,784			2,211
		1,073,536			1,174,728
Net deferred loan origination costs		367			912
Allowance for loan losses		(8,011	)		(7,632	)
Loans, net	$	1,065,892		$	1,168,008

The following tables present the balance in the allowance for loan losses and 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*
September 30, 2020
One-to-four family residential real estate	$	—	$	623	$	623	$	1,746	$	43,066	$	44,812
Multi-family mortgage		—		4,143		4,143		596		522,229		522,825
Nonresidential real estate		20		1,697		1,717		1,870		122,607		124,477
Commercial loans and leases		—		1,480		1,480		155		379,483		379,638
Consumer		—		48		48		—		1,784		1,784
	$	20	$	7,991	$	8,011	$	4,367	$	1,069,169		1,073,536
Net deferred loan origination costs												367
Allowance for loan losses												(8,011	)
Loans, net											$	1,065,892

	*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, 2019
One-to-four family residential real estate	$	—	$	675	$	675	$	1,835	$	53,915	$	55,750
Multi-family mortgage		—		3,676		3,676		620		563,130		563,750
Nonresidential real estate		—		1,176		1,176		288		134,386		134,674
Commercial loans and leases		—		2,065		2,065		—		418,343		418,343
Consumer		—		40		40		—		2,211		2,211
	$	—	$	7,632	$	7,632	$	2,743	$	1,171,985		1,174,728
Net deferred loan origination costs												912
Allowance for loan losses												(7,632	)
Loans, net											$	1,168,008

The following table represents the activity in the allowance for loan losses by portfolio segment:

	*Beginning balance*		*Provision for (recovery of) loan losses*			*Loans charged off*			*Recoveries*		*Ending balance*
For the three months ended

September 30, 2020
One-to-four family residential real estate	$	665	$	(42	)	$	(2	)	$	2	$	623
Multi-family mortgage		4,185		(98	)		—			56		4,143
Nonresidential real estate		1,602		115			—			—		1,717
Commercial loans and leases		1,658		(178	)		—			—		1,480
Consumer		46		16			(14	)		—		48
	$	8,156	$	(187	)	$	(16	)	$	58	$	8,011

September 30, 2019
One-to-four family residential real estate	$	563	$	56		$	(44	)	$	5	$	580
Multi-family mortgage		3,988		(268	)		—			8		3,728
Nonresidential real estate		1,195		77			(55	)		—		1,217
Construction and land		3		(1	)		—			—		2
Commercial loans and leases		2,044		(8	)		—			4		2,040
Consumer		31		10			(5	)		—		36
	$	7,824	$	(134	)	$	(104	)	$	17	$	7,603

For the nine months ended

September 30, 2020
One-to-four family residential real estate	$	675	$	(63	)	$	(7	)	$	18	$	623
Multi-family mortgage		3,676		384			—			83		4,143
Nonresidential real estate		1,176		541			—			—		1,717
Commercial loans and leases		2,065		(588	)		—			3		1,480
Consumer		40		52			(44	)		—		48
	$	7,632	$	326		$	(51	)	$	104	$	8,011

September 30, 2019
One-to-four family residential real estate	$	699	$	(30	)	$	(117	)	$	28	$	580
Multi-family mortgage		3,991		(287	)		—			24		3,728
Nonresidential real estate		1,476		(176	)		(83	)		—		1,217
Construction and land		4		(2	)		—			—		2
Commercial loans and leases		2,272		4,203			(4,443	)		8		2,040
Consumer		28		28			(20	)		—		36
	$	8,470	$	3,736		$	(4,663	)	$	60	$	7,603

Impaired loans

The following tables present loans individually evaluated for impairment by class of loans:

									*Three Months Ended*				*Nine Months Ended*
									*September 30, 2020*				*September 30, 2020*
	*Loan Balance*		*Recorded Investment*		*Partial Charge off*		*Allowance for Loan Losses Allocated*		*Average Investment in Impaired Loans*		*Interest Income Recognized*		*Average Investment in Impaired Loans*		*Interest Income Recognized*
September 30, 2020
With no related allowance recorded:
One-to-four family residential real estate	$	2,092	$	1,746	$	358	$	—	$	1,760	$	10	$	1,798	$	34
Multi-family mortgage - Illinois		596		596		—		—		600		8		608		26
Nonresidential real estate		1,582		1,582		—		—		791		—		316		32
Commercial leases - other		155		155		—		—		478		27		259		27
		4,425		4,079		358		—		3,629		45		2,981		119

With a related allowance recorded - nonresidential		280		288		—		20		288		—		288		—
	$	4,705	$	4,367	$	358	$	20	$	3,917	$	45	$	3,269	$	119

									*Year ended*
									*December 31, 2019*
	*Loan Balance*		*Recorded Investment*		*Partial Charge-off*		*Allowance for Loan Losses Allocated*		*Average Investment in Impaired Loans*		*Interest Income Recognized*
December 31, 2019
With no related allowance recorded:
One-to-four family residential real estate	$	2,168	$	1,835	$	339	$	—	$	2,208	$	51
Multi-family mortgage - Illinois		620		620		—		—		637		37
Nonresidential real estate		280		288		—		—		589		2
	$	3,068	$	2,743	$	339	$	—	$	3,434	$	90

Nonaccrual Loans

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

	*Loan Balance*		*Recorded Investment*		*Loans Past Due Over 90 Days, Still Accruing*
September 30, 2020
One-to-four family residential real estate	$	485	$	465	$	—
Nonresidential real estate		1,863		1,870		—
	$	2,348	$	2,335	$	—
December 31, 2019
One-to-four family residential real estate	$	598	$	512	$	—
Nonresidential real estate		280		288		—
Investment-rated commercial leases		47		—		47
	$	925	$	800	$	47

Nonaccrual loans and impaired loans are defined differently. Some loans may be included in both categories, and some loans 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 $135,000 and $81,000 at September 30, 2020 and December 31, 2019, 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 nonaccrual 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.

Past Due Loans

The following tables present the aging of the recorded investment of loans 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*
September 30, 2020
One-to-four family residential real estate loans:
Owner occupied	$	48	$	-	$	462	$	510	$	35,604	$	36,114
Non-owner occupied		3		95		—	$	98		8,600		8,698
Multi-family mortgage:
Illinois		—		—		—		—		224,919		224,919
Other		—		—		—		—		297,906		297,906
Nonresidential real estate		—		—		1,870		1,870		122,607		124,477
Commercial loans and leases:
Commercial		—		—		—		—		90,767		90,767
Asset-based		—		—		—		—		1,471		1,471
Equipment finance:
Government		—		—		—		—		71,504		71,504
Investment-rated		439		124		—		563		81,449		82,012
Other		633		—		—		633		133,251		133,884
Consumer		6		4		—		10		1,774		1,784
	$	1,129	$	223	$	2,332	$	3,684	$	1,069,852	$	1,073,536

	*30-59 Days Past Due*		*60-89 Days Past Due*		*90 Days or Greater Past Due*		*Total Past Due*		*Loans Not Past Due*		*Total*
December 31, 2019
One-to-four family residential real estate loans:
Owner occupied	$	777	$	340	$	507	$	1,624	$	43,365	$	44,989
Non-owner occupied		280		15		—		295		10,466		10,761
Multi-family mortgage:
Illinois		981		302		—		1,283		246,680		247,963
Other		—		—		—		—		315,787		315,787
Nonresidential real estate		—		—		288		288		134,386		134,674
Commercial loans and leases:
Commercial		—		—		—		—		133,976		133,976
Asset-based		—		—		—		—		11,738		11,738
Equipment finance:
Government		—		—		—		—		33,555		33,555
Investment-rated		826		—		47		873		101,015		101,888
Other		543		136		—		679		136,507		137,186
Consumer		24		37		—		61		2,150		2,211
	$	3,431	$	830	$	842	$	5,103	$	1,169,625	$	1,174,728

U.S. Small Business Administration Paycheck Protection Program ("PPP")

In response to the COVID-19 pandemic, the Coronavirus Aid, Relief and Economic Security Act ("CARES Act") was passed by Congress and signed into law on March 27, 2020. The CARES Act established the Paycheck Protection Program loan, designed to provide a direct incentive for small businesses to keep their workers on the payroll. Under the most recently published guidance, the U.S. Small Business Administration ("SBA") will forgive PPP loans if all employee retention criteria are met, and the funds are used for eligible expenses. For the nine months ended September 30, 2020, we allocated approximately $11 million to the PPP based on the expected 100% guaranty of the SBA.

The following table presents the PPP activity:

	*Number of loans*		*Originated*		*Balance*
For the Nine Months Ended September 30, 2020
Paycheck protection program loan originations		315	$	11,160

September 30, 2020
Paycheck protection program loans		310			$	11,042

COVID-19 Loan Forbearance Programs

Section 4013 of the CARES Act provides that a qualified loan modification is exempt by law from classification as a Troubled Debt Restructuring ("TDR") pursuant to US GAAP. In addition, the Revised Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working With Customers Affected by the Coronavirus (“OCC Bulletin 2020-50”) provides more limited circumstances in which a loan modification is not subject to classification as a TDR and also defined the circumstances where the borrower’s loan is reported as current on loan payments. Pursuant to these new capabilities, we developed several loan forbearance programs to assist borrowers with managing cash flows disrupted due to COVID-19.

Our Apartment and Commercial Real Estate COVID-19 Qualified Limited Forbearance Agreement permitted borrowers who qualified under Section 4013 of the CARES Act to make an election to pay scheduled interest and escrow payments (if applicable) for a four-month period beginning in April 2020, and pay all deferred principal payments by December 2020.

Our Small Investment Property COVID-19 Qualified Limited Forbearance Agreement permitted borrowers with loan balances under $750,000 who qualified under Section 4013 of the CARES Act to make an election to pay scheduled interest and escrow payments (if applicable) for a four-month period beginning in April 2020, and pay all deferred principal payments by December 2020. In addition, the borrower could elect to defer the May 2020 loan payment entirely, with all deferred interest amounts due by December 2020 and all deferred principal amounts due by June 30, 2021.

CARES Act Section 4013 and OCC Bulletin 2020-35 forbearance agreements are available to qualified commercial loan and commercial finance borrowers, and to commercial equipment lessees.

For residential mortgage and consumer loans, relief under CARES Act Section 4013 or OCC Bulletin 2020-35 forbearance agreements are available to qualified borrowers with terms consistent with secondary residential mortgage market standards established by Fannie Mae.

The following table summarizes the remaining loan forbearance modifications at September 30, 2020:

	*Number of loans*		*Principal Balance*		*Remaining Amounts Deferred*

Small Investment Property COVID-19 Qualified Limited Forbearance Agreement
Multi-family mortgage		15	$	4,511	$	46
Nonresidential real estate		15		5,871		93
Apartment and Commercial Real Estate COVID-19 Qualified Limited Forbearance Agreement
Multi-family mortgage		53		42,663		185
Nonresidential real estate		28		31,861		273
Commercial leases ⁽¹⁾		25		9,211		—
One-to-four family residential real estate		10		1,422		11

		146	$	95,539	$	608

(1) Commercial lease deferrals have been reamortized to maturity.

Troubled Debt Restructurings

The Company evaluates loan extensions or modifications not qualified under Section 4013 of the CARES Act or under OCC Bulletin 2020-35 in accordance with FASB ASC 340-10 with respect to the classification of the loan as a TDR.

Under ASC 340-10, if the Company grants a loan extension or modification to a borrower experiencing financial difficulties 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 no TDRs at September 30, 2020 and December 31, 2019. During the nine months ended September 30, 2020 and 2019, there were no loans modified and classified as TDRs. During the three and nine months ended September 30, 2020 and 2019, there were no TDR loans that subsequently defaulted within twelve months of their modification.

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

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.

Credit Quality Indicators

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.

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

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*
September 30, 2020
One-to-four family residential real estate loans:
Owner occupied	$	35,165	$	-	$	484	$	465	$	36,114
Non-owner occupied		8,637		28		33		—		8,698
Multi-family mortgage:
Illinois		224,919		—		—		—		224,919
Other		297,906		—		—		—		297,906
Nonresidential real estate		119,260		2,151		1,196		1,870		124,477
Commercial loans and leases:
Commercial		90,767		—		—		—		90,767
Asset-based		1,471		—		—		—		1,471
Equipment finance:
Government		71,504		—		—		—		71,504
Investment-rated		82,012		—		—		—		82,012
Other		132,588		—		1,296		—		133,884
Consumer		1,774		5		5		—		1,784
	$	1,066,003	$	2,184	$	3,014	$	2,335	$	1,073,536

	*Pass*		*Special Mention*		*Substandard*		*Nonaccrual*		*Total*
December 31, 2019
One-to-four family residential real estate loans:
Owner occupied	$	43,908	$	36	$	533	$	512	$	44,989
Non-owner occupied		10,696		30		35		—		10,761
Multi-family mortgage:
Illinois		247,757		—		206		—		247,963
Other		315,787		—		—		—		315,787
Nonresidential real estate		134,134		162		90		288		134,674
Commercial loans and leases:
Commercial		125,630		8,346		—		—		133,976
Asset-based		11,738		—		—		—		11,738
Equipment finance:
Government		33,555		—		—		—		33,555
Investment-rated		101,381		507		—		—		101,888
Other		136,289		761		136		—		137,186
Consumer		2,153		5		53		—		2,211
	$	1,163,028	$	9,847	$	1,053	$	800	$	1,174,728

Note 5 - Other Real Estate Owned

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Real Estate Owned [Text Block]

NOTE 5 - OTHER REAL ESTATE OWNED

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.

	*September 30, 2020*						*December 31, 2019*
	*Balance*		*Valuation Allowance*		*Net OREO Balance*		*Balance*		*Valuation Allowance*		*Net OREO Balance*
One–to–four family residential	$	110	$	-	$	110	$	186	$	—	$	186

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

	*For the Three Months Ended*						*For the Nine Months Ended*
	*September 30,*						*September 30,*
	*2020*			*2019*			*2020*			*2019*
Beginning balance	$	143		$	497		$	186		$	1,226
New foreclosed properties		—			30			33			76
Valuation adjustments		—			(17	)		—			(38	)
Sales and other reductions		(33	)		(241	)		(109	)		(995	)
Ending balance	$	110		$	269		$	110		$	269

Activity in the valuation allowance is as follows:

	*For the Three Months Ended*				*For the Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*		*2019*
Beginning balance	$	—	$	21	$	—	$	23
Additions charged to expense		—		17		—		38
Reductions from sales of OREO		—		—		—		(23	)
Ending balance	$	—	$	38	$	—	$	38

At September 30, 2020 and December 31, 2019, the balance of OREO included no foreclosed residential real estate properties recorded as a result of obtaining physical possession of the property without title. At September 30, 2020 and December 31, 2019, the recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings were in process was $180,000 and $237,000, respectively.

Note 6 - Leases

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Lessee, Operating Leases [Text Block]

NOTE 6 - LEASES

The Company enters into operating leases in the normal course of business primarily for several of its branch and corporate locations. Leases (Topic 842) establishes a right of use model that requires a lessee to record a right of use (“ROU”) asset and a lease liability for all leases with terms longer than 12 months. Currently the Company is obligated under four non-cancellable operating lease agreements for three branch properties and its corporate office. The leases have varying terms, the longest of which will end in 2032. The Company's lease agreements include options to renew at the Company's discretion. The extensions are not reasonably certain to be exercised; therefore, they were not considered in the calculation of the ROU asset and lease liability. The Company has also elected not to recognize leases with original lease terms of 12 months or less (short-term leases) on the Company's Statement of Financial Condition.

The following table represents the classification of the Company's right of use and lease liabilities:

	*Statement of Financial Condition Location*	*September 30, 2020*			*December 31, 2019*
Operating Lease Right of Use Asset:
Gross carrying amount		$	6,694		$	—
New lease obligation			111			6,694
Accumulated amortization			(1,508	)		(848	)
Net carrying value	Other assets	$	5,297		$	5,846

Operating Lease Liabilities:
Right of use lease obligations	Other liabilities	$	5,297		$	5,846

Amortization expense was $221,000 and $212,000 for the three months ended September 30, 2020 and 2019, respectively, and $660,000 and $636,000 for the nine months ended September 30, 2020 and 2019. At September 30, 2020, the weighted-average remaining lease term for the operating leases was 8.4 years and the weighted-average discount rate used in the measurement of operating lease liabilities was 3.13%. The Company utilized the FHLB fixed rate advance rate for the term most closely aligning with the remaining lease term at inception.

	*For the Three Months Ended*						*For the Nine Months Ended*
	*September 30,*						*September 30,*
Lease cost:	*2020*			*2019*			*2020*			*2019*
Operating lease cost	$	221		$	212		$	660		$	636
Short-term lease cost		42			26			113			86
Sublease income		(19	)		(17	)		(56	)		(32	)
Total lease cost	$	244		$	221		$	717		$	690

Other information:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	238		$	225		$	709		$	674

Future minimum payments under non-cancellable operating leases with terms longer than 12 months, are as follows at September 30, 2020:

Twelve months ended September 30,
2021	$	957
2022		991
2023		1,002
2024		582
2025		505
Thereafter		2,344
Total future minimum operating lease payments		6,381
Amounts representing interest		(1,084	)
Present value of net future minimum operating lease payments	$	5,297

Note 7 - Borrowings

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Debt Disclosure [Text Block]

NOTE 7 - BORROWINGS

Advances from the FHLB were as follows:

	*September 30, 2020*					*December 31, 2019*
	*Contractual*					*Contractual*
	*Rate*			*Amount*		*Rate*			*Amount*
Fixed-rate advance from FHLB, due within 1 year		—	%	$	4,000		—	%	$	—

Securities sold under agreements to repurchase, which are included with borrowings on the consolidated balance sheet, are shown below.

	*Overnight and Continuous*		*Up to 30 days*		*30 - 90 days*		*Greater Than 90 days*		*Total*
December 31, 2019
Repurchase agreements and repurchase-to-maturity transactions	$	61	$	—	$	—	$	—	$	61
Gross amount of recognized liabilities for repurchase agreements in Consolidated Statements of Financial Condition									$	61

There were no repurchase agreements and repurchase-to-maturity transactions at September 30, 2020.

Securities sold under agreements to repurchase were secured by a mortgage-backed security with a carrying amount of $2.0 million at December 31, 2019, As the security's value fluctuates due to market conditions, the Company has no control over the market value. The Company is obligated to promptly transfer additional securities if the market value of the securities falls below the repurchase price, per the agreement.

On April 1, 2020, the Company established a $5.0 million unsecured line of credit with a correspondent bank. Interest is payable at a rate of Prime rate minus 0.75%. The line of credit will mature on April 1, 2021. The line of credit had no outstanding balance at September 30, 2020.

Note 8 - Fair Value

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Fair Value Disclosures [Text Block]

NOTE 8 – 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 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).

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.

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*
September 30, 2020
Securities:
Certificates of deposit	$	—	$	32,724	$	—	$	32,724
Municipal securities		—		512		—		512
Mortgage-backed securities – residential		—		6,429		—		6,429
Collateralized mortgage obligations – residential		—		2,383		—		2,383
	$	—	$	42,048	$	—	$	42,048
December 31, 2019
Securities:
Certificates of deposit	$	—	$	48,666	$	—	$	48,666
Municipal securities		—		513		—		513
Mortgage-backed securities - residential		—		8,037		—		8,037
Collateralized mortgage obligations – residential		—		2,977		—		2,977
	$	—	$	60,193	$	—	$	60,193

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*
September 30, 2020
Impaired loans - nonresidential real estate	$	—	$	—	$	268	$	268

Impaired loans, which are measured for impairment using the fair value of the collateral for collateral–dependent loans, had a carrying amount of $288,000, with a valuation allowance of $20,000 at September 30, 2020. At December 31, 2019 there were no impaired loans that were measured for impairment using the fair value of the collateral for collateral–dependent loans and which had specific valuation allowances. There is an increase in the provision for loan losses of $20,000 for the three and nine months ended September 30, 2020, compared to no specific provision for loan losses for the three and nine months ended September 30, 2019.

At September 30, 2020 and December 31, 2019 there were no OREO properties with valuation allowances.

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 September 30, 2020:

	*Fair Value*		*Valuation Technique(s)*	*Significant Unobservable Input(s)*	*Range (Weighted Average)*
September 30, 2020
Impaired loans - nonresidential real estate	$	268	Sales comparison	Discount applied to valuation		22.0	%

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

			*Fair Value Measurements at September 30, 2020 Using:*
	*Carrying Amount*		*Level 1*		*Level 2*		*Level 3*		*Total*
Financial assets
Cash and cash equivalents	$	429,665	$	13,740	$	415,925	$	—	$	429,665
Securities		42,048		—		42,048		—		42,048
Loans receivable, net of allowance for loan losses		1,065,892		—		—		1,073,308		1,073,308
FHLB and FRB stock		7,490		—		—		—		N /A
Accrued interest receivable		4,354		—		158		4,196		4,354
Financial liabilities
Certificates of deposit		301,351		—		302,791		—		302,791
Borrowings		4,000		—		3,997		—		3,997

			*Fair Value Measurements at December 31, 2019 Using:*
	*Carrying Amount*		*Level 1*		*Level 2*		*Level 3*		*Total*
Financial assets
Cash and cash equivalents	$	190,325	$	9,785	$	180,540	$	—	$	190,325
Securities		60,193		—		60,193		—		60,193
Loans receivable, net of allowance for loan losses		1,168,008		—		—		1,177,459		1,177,459
FHLB and FRB stock		7,490		—		—		—		N /A
Accrued interest receivable		4,563		—		252		4,311		4,563
Financial liabilities
Certificates of deposit		402,034		—		402,914		—		402,914
Borrowings		61		—		61		—		61

Loans: The exit price observations are obtained from an independent third-party using its proprietary valuation model and methodology and may not reflect actual or prospective market valuations. The valuation is based on the probability of default, loss given default, recovery delay, prepayment, and discount rate assumptions.

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

Note 9 - Revenue from Contracts with Customers

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Revenue from Contract with Customer [Text Block]

NOTE 9 – REVENUE FROM CONTRACTS WITH CUSTOMERS

All of the Company's revenue from contracts with customers within the scope of ASC 606 is recognized within noninterest income. The following table presents the Company's sources of noninterest income. Items outside of the scope of the ASC 606 are noted as such.

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*			*2019*
Deposit service charges and fees	$	833	$	983	$	2,456		$	2,887
Loan servicing fees ⁽¹⁾		44		99		189			178
Mortgage brokerage and banking fees ⁽¹⁾		44		28		84			77
Gain on sale of equity securities ⁽¹⁾		—		—		—			295
Loss on disposal of other assets		—		—		(2	)		(19	)
Trust and insurance commissions and annuities income		222		198		728			627
Earnings on bank-owned life insurance ⁽¹⁾		10		37		51			105
Other ⁽¹⁾		111		129		319			374
Total noninterest income	$	1,264	$	1,474	$	3,825		$	4,524

⁽¹⁾ Not within the scope of ASC 606

A description of the Company's revenue streams accounted for under ASC 606 follows:

Deposit service charges and fees: The Company earns fees from its deposit customers based on specific types of transactions, account maintenance and overdraft services. Transaction-based fees, which include services such as ATM use fees, stop payment charges, statement rendering, and ACH fees, are recognized at the time the transaction is executed as that is the point in time the Company fulfills the customer's request. Account maintenance fees, which relate primarily to monthly maintenance, are earned over the course of a month, representing the period over which the Company satisfies the performance obligation. Overdraft fees are recognized at the point in time that the overdraft occurs. Service charges on deposits are withdrawn from the customer's account balance.

Interchange income: The Company earns interchange fees from debit cardholder transactions conducted through the Visa payment network. Interchange fees from cardholder transactions represent a percentage of the underlying transaction value and are recognized daily, concurrently with the transaction processing services provided to the cardholder. Interchange income is included in deposit service charges and fees. Interchange income was $ 394,000 and $ 395,000 for the three months ended September 30, 2020 and 2019. Interchange income was $ 1.1 million and $ 1.2 million for the nine months ended September 30, 2020 and 2019.

Trust and insurance commissions and annuities income: The Company earns trust, insurance commissions and annuities income from its contracts with trust customers to manage assets for investment, and/or to transact on their accounts. These fees are primarily earned over time as the Company provides the contracted monthly or quarterly services and are generally assessed based on a tiered scale of the market value of assets under management (AUM) at month-end. Fees that are transaction based, including trade execution services, are recognized at the point in time that the transaction is executed, i.e., the trade date. Other related services provided include fees the Company earns, which are based on a fixed fee schedule, are recognized when the services are rendered.

Gains/losses on sales of OREO and other assets: The Company records a gain or loss from the sale of OREO and other assets when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. When the Company finances the sale of OREO to the buyer, the Company assesses whether the buyer is committed to perform their obligations under the contract and whether collectability of the transaction price is probable. Once these criteria are met, the OREO asset is derecognized and the gain or loss on sale is recorded upon the transfer of control of the property to the buyer. In determining the gain or loss on the sale, the Company adjusts the transaction price and related gain (loss) on sale if a significant financing component is present. OREO sales for the three and nine months ended September 30, 2020 and 2019 were not financed by the Bank.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

Significant Accounting Policies (Policies)	9 Months Ended
Significant Accounting Policies (Policies)	Sep. 30, 2020
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	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, NA (the “Bank”). The interim unaudited consolidated financial statements include the accounts and transactions of BankFinancial Corporation, the Bank, and the Bank’s wholly-owned subsidiaries, Financial Assurance Services, Inc. and BFIN Asset Recovery Company, LLC (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. Such adjustments are the only adjustments reflected in the accompanying financial statements. All significant intercompany accounts and transactions have been eliminated. The results of operations for the three and nine month periods ended September 30, 2020 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2020 or for any other period. Certain information and note disclosures normally included in financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“US GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”).
Use of Estimates, Policy [Policy Text Block]	Use of Estimates: The preparation of the consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Although these estimates and assumptions are based on the best available information, actual information, actual results could differ from those estimates.
Covid-19 [Policy Text Block]	COVID-19: The Company has evaluated subsequent events for potential recognition and/or disclosure through the date the unaudited consolidated financial statements included in this Quarterly Report on Form 10-Q were issued. On March 11, 2020, the World Health Organization declared the outbreak of a novel coronavirus (“COVID-19”) as a global pandemic, which continues to spread throughout the United States and around the world. The declaration of a global pandemic indicates that almost all public commerce and related business activities must be, to varying degrees, curtailed with the goal of decreasing the rate of new infections. The outbreak of COVID-19 has adversely impacted, and could further adversely impact, a broad range of industries in which the Company’s customers operate and impair their ability to fulfill their financial obligations to the Company. On March 3, 2020, the Federal Open Market Committee reduced the target federal funds rate by 50 basis points to 1.00% to 1.25%. This rate was further reduced to a target range of 0% to 0.25% on March 16, 2020. These reductions in interest rates and other effects of the COVID-19 outbreak may adversely affect the Company’s financial condition and results of operations. As a result of the spread of the COVID-19 coronavirus, economic uncertainties have arisen which are likely to negatively impact net interest income and noninterest income. Other financial impacts could occur though such potential impact is unknown at this time.
Reclassification, Comparability Adjustment [Policy Text Block]	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, 2019, as filed with the Securities and Exchange Commission.
New Accounting Pronouncements, Policy [Policy Text Block]	*Newly Issued Not* Yet Effective Accounting Standards** 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. For SEC filers who are smaller reporting companies, such as the Company, ASU 2016-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022.

Note 2 - Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*		*2019*
Net income available to common stockholders	$	1,948	$	3,924	$	6,718	$	8,282
Basic and diluted weighted average common shares outstanding		14,842,150		15,373,964		15,008,271		15,679,927
Basic and diluted earnings per common share	$	0.13	$	0.26	$	0.45	$	0.53

Note 3 - Securities (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	*Amortized Cost*		*Gross Unrealized Gains*		*Gross Unrealized Losses*			*Fair Value*
Available-for-Sale Securities
September 30, 2020
Certificates of deposit	$	32,724	$	—	$	—		$	32,724
Municipal securities		503		9		—			512
Mortgage-backed securities - residential		6,124		305		—			6,429
Collateralized mortgage obligations - residential		2,381		4		(2	)		2,383
	$	41,732	$	318	$	(2	)	$	42,048
December 31, 2019
Certificates of deposit	$	48,666	$	—	$	—		$	48,666
Municipal securities		505		8		—			513
Mortgage-backed securities - residential		7,727		310		—			8,037
Collateralized mortgage obligations - residential		2,986		4		(13	)		2,977
	$	59,884	$	322	$	(13	)	$	60,193

Investments Classified by Contractual Maturity Date [Table Text Block]

	*September 30, 2020*
	*Amortized Cost*		*Fair Value*
Due in one year or less	$	32,576	$	32,577
Due after one year through five years		651		659
		33,227		33,236
Mortgage-backed securities - residential		6,124		6,429
Collateralized mortgage obligations - residential		2,381		2,383
	$	41,732	$	42,048

Realized Gain (Loss) on Investments [Table Text Block]

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*		*2019*
Proceeds	$	—	$	—	$	—	$	3,722
Gross gains		—		—		—		295
Gross losses		—		—		—		—

Schedule of Unrealized Loss on Investments [Table Text Block]

			*Less than 12 Months*							*12 Months or More*							*Total*
	*Count*		*Fair Value*		*Unrealized Loss*			*Count*		*Fair Value*		*Unrealized Loss*			*Count*		*Fair Value*		*Unrealized Loss*
September 30, 2020
Collateralized mortgage obligations - residential		—	$	—	$	—			3	$	1,695	$	(2	)		3	$	1,695	$	(2	)

December 31, 2019
Collateralized mortgage obligations - residential		3	$	1,566	$	(10	)		1	$	937	$	(3	)		4	$	2,503	$	(13	)

Note 4 - Loans Receivable (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	*September 30, 2020*			*December 31, 2019*
One-to-four family residential real estate	$	44,812		$	55,750
Multi-family mortgage		522,825			563,750
Nonresidential real estate		124,477			134,674
Commercial loans and leases		379,638			418,343
Consumer		1,784			2,211
		1,073,536			1,174,728
Net deferred loan origination costs		367			912
Allowance for loan losses		(8,011	)		(7,632	)
Loans, net	$	1,065,892		$	1,168,008

Financing Receivable and Allowance for Loan Losses Based on Impairment Method [Table Text Block]

	*Allowance for loan losses*						*Loan Balances*
	*Individually evaluated for impairment*		*Collectively evaluated for impairment*		*Total*		*Individually evaluated for impairment*		*Collectively evaluated for impairment*		*Total*
September 30, 2020
One-to-four family residential real estate	$	—	$	623	$	623	$	1,746	$	43,066	$	44,812
Multi-family mortgage		—		4,143		4,143		596		522,229		522,825
Nonresidential real estate		20		1,697		1,717		1,870		122,607		124,477
Commercial loans and leases		—		1,480		1,480		155		379,483		379,638
Consumer		—		48		48		—		1,784		1,784
	$	20	$	7,991	$	8,011	$	4,367	$	1,069,169		1,073,536
Net deferred loan origination costs												367
Allowance for loan losses												(8,011	)
Loans, net											$	1,065,892

	*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, 2019
One-to-four family residential real estate	$	—	$	675	$	675	$	1,835	$	53,915	$	55,750
Multi-family mortgage		—		3,676		3,676		620		563,130		563,750
Nonresidential real estate		—		1,176		1,176		288		134,386		134,674
Commercial loans and leases		—		2,065		2,065		—		418,343		418,343
Consumer		—		40		40		—		2,211		2,211
	$	—	$	7,632	$	7,632	$	2,743	$	1,171,985		1,174,728
Net deferred loan origination costs												912
Allowance for loan losses												(7,632	)
Loans, net											$	1,168,008

Financing Receivable, Allowance for Credit Loss [Table Text Block]

	*Beginning balance*		*Provision for (recovery of) loan losses*			*Loans charged off*			*Recoveries*		*Ending balance*
For the three months ended

September 30, 2020
One-to-four family residential real estate	$	665	$	(42	)	$	(2	)	$	2	$	623
Multi-family mortgage		4,185		(98	)		—			56		4,143
Nonresidential real estate		1,602		115			—			—		1,717
Commercial loans and leases		1,658		(178	)		—			—		1,480
Consumer		46		16			(14	)		—		48
	$	8,156	$	(187	)	$	(16	)	$	58	$	8,011

September 30, 2019
One-to-four family residential real estate	$	563	$	56		$	(44	)	$	5	$	580
Multi-family mortgage		3,988		(268	)		—			8		3,728
Nonresidential real estate		1,195		77			(55	)		—		1,217
Construction and land		3		(1	)		—			—		2
Commercial loans and leases		2,044		(8	)		—			4		2,040
Consumer		31		10			(5	)		—		36
	$	7,824	$	(134	)	$	(104	)	$	17	$	7,603

For the nine months ended

September 30, 2020
One-to-four family residential real estate	$	675	$	(63	)	$	(7	)	$	18	$	623
Multi-family mortgage		3,676		384			—			83		4,143
Nonresidential real estate		1,176		541			—			—		1,717
Commercial loans and leases		2,065		(588	)		—			3		1,480
Consumer		40		52			(44	)		—		48
	$	7,632	$	326		$	(51	)	$	104	$	8,011

September 30, 2019
One-to-four family residential real estate	$	699	$	(30	)	$	(117	)	$	28	$	580
Multi-family mortgage		3,991		(287	)		—			24		3,728
Nonresidential real estate		1,476		(176	)		(83	)		—		1,217
Construction and land		4		(2	)		—			—		2
Commercial loans and leases		2,272		4,203			(4,443	)		8		2,040
Consumer		28		28			(20	)		—		36
	$	8,470	$	3,736		$	(4,663	)	$	60	$	7,603

Impaired Financing Receivables [Table Text Block]

									*Three Months Ended*				*Nine Months Ended*
									*September 30, 2020*				*September 30, 2020*
	*Loan Balance*		*Recorded Investment*		*Partial Charge off*		*Allowance for Loan Losses Allocated*		*Average Investment in Impaired Loans*		*Interest Income Recognized*		*Average Investment in Impaired Loans*		*Interest Income Recognized*
September 30, 2020
With no related allowance recorded:
One-to-four family residential real estate	$	2,092	$	1,746	$	358	$	—	$	1,760	$	10	$	1,798	$	34
Multi-family mortgage - Illinois		596		596		—		—		600		8		608		26
Nonresidential real estate		1,582		1,582		—		—		791		—		316		32
Commercial leases - other		155		155		—		—		478		27		259		27
		4,425		4,079		358		—		3,629		45		2,981		119

With a related allowance recorded - nonresidential		280		288		—		20		288		—		288		—
	$	4,705	$	4,367	$	358	$	20	$	3,917	$	45	$	3,269	$	119

									*Year ended*
									*December 31, 2019*
	*Loan Balance*		*Recorded Investment*		*Partial Charge-off*		*Allowance for Loan Losses Allocated*		*Average Investment in Impaired Loans*		*Interest Income Recognized*
December 31, 2019
With no related allowance recorded:
One-to-four family residential real estate	$	2,168	$	1,835	$	339	$	—	$	2,208	$	51
Multi-family mortgage - Illinois		620		620		—		—		637		37
Nonresidential real estate		280		288		—		—		589		2
	$	3,068	$	2,743	$	339	$	—	$	3,434	$	90

Financing Receivable, Nonaccrual [Table Text Block]

	*Loan Balance*		*Recorded Investment*		*Loans Past Due Over 90 Days, Still Accruing*
September 30, 2020
One-to-four family residential real estate	$	485	$	465	$	—
Nonresidential real estate		1,863		1,870		—
	$	2,348	$	2,335	$	—
December 31, 2019
One-to-four family residential real estate	$	598	$	512	$	—
Nonresidential real estate		280		288		—
Investment-rated commercial leases		47		—		47
	$	925	$	800	$	47

Financing Receivable, Past Due [Table Text Block]

	*30-59 Days Past Due*		*60-89 Days Past Due*		*90 Days or Greater Past Due*		*Total Past Due*		*Loans Not Past Due*		*Total*
September 30, 2020
One-to-four family residential real estate loans:
Owner occupied	$	48	$	-	$	462	$	510	$	35,604	$	36,114
Non-owner occupied		3		95		—	$	98		8,600		8,698
Multi-family mortgage:
Illinois		—		—		—		—		224,919		224,919
Other		—		—		—		—		297,906		297,906
Nonresidential real estate		—		—		1,870		1,870		122,607		124,477
Commercial loans and leases:
Commercial		—		—		—		—		90,767		90,767
Asset-based		—		—		—		—		1,471		1,471
Equipment finance:
Government		—		—		—		—		71,504		71,504
Investment-rated		439		124		—		563		81,449		82,012
Other		633		—		—		633		133,251		133,884
Consumer		6		4		—		10		1,774		1,784
	$	1,129	$	223	$	2,332	$	3,684	$	1,069,852	$	1,073,536

	*30-59 Days Past Due*		*60-89 Days Past Due*		*90 Days or Greater Past Due*		*Total Past Due*		*Loans Not Past Due*		*Total*
December 31, 2019
One-to-four family residential real estate loans:
Owner occupied	$	777	$	340	$	507	$	1,624	$	43,365	$	44,989
Non-owner occupied		280		15		—		295		10,466		10,761
Multi-family mortgage:
Illinois		981		302		—		1,283		246,680		247,963
Other		—		—		—		—		315,787		315,787
Nonresidential real estate		—		—		288		288		134,386		134,674
Commercial loans and leases:
Commercial		—		—		—		—		133,976		133,976
Asset-based		—		—		—		—		11,738		11,738
Equipment finance:
Government		—		—		—		—		33,555		33,555
Investment-rated		826		—		47		873		101,015		101,888
Other		543		136		—		679		136,507		137,186
Consumer		24		37		—		61		2,150		2,211
	$	3,431	$	830	$	842	$	5,103	$	1,169,625	$	1,174,728

Financing Receivable Credit Quality Indicators [Table Text Block]

	*Pass*		*Special Mention*		*Substandard*		*Nonaccrual*		*Total*
September 30, 2020
One-to-four family residential real estate loans:
Owner occupied	$	35,165	$	-	$	484	$	465	$	36,114
Non-owner occupied		8,637		28		33		—		8,698
Multi-family mortgage:
Illinois		224,919		—		—		—		224,919
Other		297,906		—		—		—		297,906
Nonresidential real estate		119,260		2,151		1,196		1,870		124,477
Commercial loans and leases:
Commercial		90,767		—		—		—		90,767
Asset-based		1,471		—		—		—		1,471
Equipment finance:
Government		71,504		—		—		—		71,504
Investment-rated		82,012		—		—		—		82,012
Other		132,588		—		1,296		—		133,884
Consumer		1,774		5		5		—		1,784
	$	1,066,003	$	2,184	$	3,014	$	2,335	$	1,073,536

	*Pass*		*Special Mention*		*Substandard*		*Nonaccrual*		*Total*
December 31, 2019
One-to-four family residential real estate loans:
Owner occupied	$	43,908	$	36	$	533	$	512	$	44,989
Non-owner occupied		10,696		30		35		—		10,761
Multi-family mortgage:
Illinois		247,757		—		206		—		247,963
Other		315,787		—		—		—		315,787
Nonresidential real estate		134,134		162		90		288		134,674
Commercial loans and leases:
Commercial		125,630		8,346		—		—		133,976
Asset-based		11,738		—		—		—		11,738
Equipment finance:
Government		33,555		—		—		—		33,555
Investment-rated		101,381		507		—		—		101,888
Other		136,289		761		136		—		137,186
Consumer		2,153		5		53		—		2,211
	$	1,163,028	$	9,847	$	1,053	$	800	$	1,174,728

COVID 19 [Member]

Notes Tables

Schedule of Unusual or Infrequent Items, or Both [Table Text Block]

	*Number of loans*		*Principal Balance*		*Remaining Amounts Deferred*

Small Investment Property COVID-19 Qualified Limited Forbearance Agreement
Multi-family mortgage		15	$	4,511	$	46
Nonresidential real estate		15		5,871		93
Apartment and Commercial Real Estate COVID-19 Qualified Limited Forbearance Agreement
Multi-family mortgage		53		42,663		185
Nonresidential real estate		28		31,861		273
Commercial leases ⁽¹⁾		25		9,211		—
One-to-four family residential real estate		10		1,422		11

		146	$	95,539	$	608

Paycheck Protection Program CARES Act [Member]

Notes Tables

Schedule of Unusual or Infrequent Items, or Both [Table Text Block]

	*Number of loans*		*Originated*		*Balance*
For the Nine Months Ended September 30, 2020
Paycheck protection program loan originations		315	$	11,160

September 30, 2020
Paycheck protection program loans		310			$	11,042

Note 5 - Other Real Estate Owned (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Real Estate Properties [Table Text Block]

	*September 30, 2020*						*December 31, 2019*
	*Balance*		*Valuation Allowance*		*Net OREO Balance*		*Balance*		*Valuation Allowance*		*Net OREO Balance*
One–to–four family residential	$	110	$	-	$	110	$	186	$	—	$	186

Other Real Estate, Roll Forward [Table Text Block]

	*For the Three Months Ended*						*For the Nine Months Ended*
	*September 30,*						*September 30,*
	*2020*			*2019*			*2020*			*2019*
Beginning balance	$	143		$	497		$	186		$	1,226
New foreclosed properties		—			30			33			76
Valuation adjustments		—			(17	)		—			(38	)
Sales and other reductions		(33	)		(241	)		(109	)		(995	)
Ending balance	$	110		$	269		$	110		$	269

Other Real Estate Owned, Valuation Allowance [Table Text Block]

	*For the Three Months Ended*				*For the Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*		*2019*
Beginning balance	$	—	$	21	$	—	$	23
Additions charged to expense		—		17		—		38
Reductions from sales of OREO		—		—		—		(23	)
Ending balance	$	—	$	38	$	—	$	38

Note 6 - Leases (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Assets and Liabilities, Lessee [Table Text Block]

	*Statement of Financial Condition Location*	*September 30, 2020*			*December 31, 2019*
Operating Lease Right of Use Asset:
Gross carrying amount		$	6,694		$	—
New lease obligation			111			6,694
Accumulated amortization			(1,508	)		(848	)
Net carrying value	Other assets	$	5,297		$	5,846

Operating Lease Liabilities:
Right of use lease obligations	Other liabilities	$	5,297		$	5,846

Lease, Cost [Table Text Block]

	*For the Three Months Ended*						*For the Nine Months Ended*
	*September 30,*						*September 30,*
Lease cost:	*2020*			*2019*			*2020*			*2019*
Operating lease cost	$	221		$	212		$	660		$	636
Short-term lease cost		42			26			113			86
Sublease income		(19	)		(17	)		(56	)		(32	)
Total lease cost	$	244		$	221		$	717		$	690

Other information:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	238		$	225		$	709		$	674

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Twelve months ended September 30,
2021	$	957
2022		991
2023		1,002
2024		582
2025		505
Thereafter		2,344
Total future minimum operating lease payments		6,381
Amounts representing interest		(1,084	)
Present value of net future minimum operating lease payments	$	5,297

Note 7 - Borrowings (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Federal Home Loan Bank, Advances [Table Text Block]

	*September 30, 2020*					*December 31, 2019*
	*Contractual*					*Contractual*
	*Rate*			*Amount*		*Rate*			*Amount*
Fixed-rate advance from FHLB, due within 1 year		—	%	$	4,000		—	%	$	—

Schedule of Repurchase Agreements [Table Text Block]

	*Overnight and Continuous*		*Up to 30 days*		*30 - 90 days*		*Greater Than 90 days*		*Total*
December 31, 2019
Repurchase agreements and repurchase-to-maturity transactions	$	61	$	—	$	—	$	—	$	61
Gross amount of recognized liabilities for repurchase agreements in Consolidated Statements of Financial Condition									$	61

Note 8 - Fair Value (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	*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*
September 30, 2020
Securities:
Certificates of deposit	$	—	$	32,724	$	—	$	32,724
Municipal securities		—		512		—		512
Mortgage-backed securities – residential		—		6,429		—		6,429
Collateralized mortgage obligations – residential		—		2,383		—		2,383
	$	—	$	42,048	$	—	$	42,048
December 31, 2019
Securities:
Certificates of deposit	$	—	$	48,666	$	—	$	48,666
Municipal securities		—		513		—		513
Mortgage-backed securities - residential		—		8,037		—		8,037
Collateralized mortgage obligations – residential		—		2,977		—		2,977
	$	—	$	60,193	$	—	$	60,193

Fair Value Measurements, Nonrecurring [Table Text Block]

	*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*
September 30, 2020
Impaired loans - nonresidential real estate	$	—	$	—	$	268	$	268

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

	*Fair Value*		*Valuation Technique(s)*	*Significant Unobservable Input(s)*	*Range (Weighted Average)*
September 30, 2020
Impaired loans - nonresidential real estate	$	268	Sales comparison	Discount applied to valuation		22.0	%

Fair Value, by Balance Sheet Grouping [Table Text Block]

			*Fair Value Measurements at September 30, 2020 Using:*
	*Carrying Amount*		*Level 1*		*Level 2*		*Level 3*		*Total*
Financial assets
Cash and cash equivalents	$	429,665	$	13,740	$	415,925	$	—	$	429,665
Securities		42,048		—		42,048		—		42,048
Loans receivable, net of allowance for loan losses		1,065,892		—		—		1,073,308		1,073,308
FHLB and FRB stock		7,490		—		—		—		N /A
Accrued interest receivable		4,354		—		158		4,196		4,354
Financial liabilities
Certificates of deposit		301,351		—		302,791		—		302,791
Borrowings		4,000		—		3,997		—		3,997

			*Fair Value Measurements at December 31, 2019 Using:*
	*Carrying Amount*		*Level 1*		*Level 2*		*Level 3*		*Total*
Financial assets
Cash and cash equivalents	$	190,325	$	9,785	$	180,540	$	—	$	190,325
Securities		60,193		—		60,193		—		60,193
Loans receivable, net of allowance for loan losses		1,168,008		—		—		1,177,459		1,177,459
FHLB and FRB stock		7,490		—		—		—		N /A
Accrued interest receivable		4,563		—		252		4,311		4,563
Financial liabilities
Certificates of deposit		402,034		—		402,914		—		402,914
Borrowings		61		—		61		—		61

Note 9 - Revenue from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
	*2020*		*2019*		*2020*			*2019*
Deposit service charges and fees	$	833	$	983	$	2,456		$	2,887
Loan servicing fees ⁽¹⁾		44		99		189			178
Mortgage brokerage and banking fees ⁽¹⁾		44		28		84			77
Gain on sale of equity securities ⁽¹⁾		—		—		—			295
Loss on disposal of other assets		—		—		(2	)		(19	)
Trust and insurance commissions and annuities income		222		198		728			627
Earnings on bank-owned life insurance ⁽¹⁾		10		37		51			105
Other ⁽¹⁾		111		129		319			374
Total noninterest income	$	1,264	$	1,474	$	3,825		$	4,524

Note 2 - Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income available to common stockholders	$ 1,948	$ 3,924	$ 6,718	$ 8,282
Basic and diluted weighted average common shares outstanding (in shares)	14,842,150	15,373,964	15,008,271	15,679,927
Basic and diluted earnings per common share (in dollars per share)	$ 0.13	$ 0.26	$ 0.45	$ 0.53

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

+ Details

Note 3 - Securities (Details Textual) - USD ($)

3 Months Ended

9 Months Ended

Sep. 30, 2020

Sep. 30, 2019

Mar. 31, 2019

Dec. 31, 2018

Sep. 30, 2020

Sep. 30, 2019

Dec. 31, 2019

Dec. 31, 2007

Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value, Total

$ 1,200,000

$ 2,000,000.0

Equity Securities, FV-NI, Gain (Loss), Total

^[1]

$ 0

$ 295,000

Visa Inc Class B Common Stock [Member]

Equity Securities without Readily Determinable Fair Value, Shares (in shares)

25,702

51,404

Equity Securities without Readily Determinable Fair Value, Shares Sold (in shares)

25,702

Equity Securities, FV-NI, Gain (Loss), Total

$ 295,000

[1]	Not within the scope of ASC 606

Note 3 - Securities - Fair Value of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized cost	$ 41,732	$ 59,884
Gross unrealized gains	318	322
Gross unrealized losses	(2)	(13)
Fair value	42,048	60,193
Certificates of Deposit [Member]
Amortized cost	32,724	48,666
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Fair value	32,724	48,666
US States and Political Subdivisions Debt Securities [Member]
Amortized cost	503	505
Gross unrealized gains	9	8
Gross unrealized losses	0	0
Fair value	512	513
Residential Mortgage Backed Securities [Member]
Amortized cost	6,124	7,727
Gross unrealized gains	305	310
Gross unrealized losses	0	0
Fair value	6,429	8,037
Collateralized Mortgage Backed Securities [Member]
Amortized cost	2,381	2,986
Gross unrealized gains	4	4
Gross unrealized losses	(2)	(13)
Fair value	$ 2,383	$ 2,977

Note 3 - Securities - Amortized Cost and Fair Value of Securities By Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Due in one year or less, amortized cost	$ 32,576
Due in one year or less, fair value	32,577
Due after one year through five years, amortized cost	651
Due after one year through five years, fair value	659
Amortized cost, single maturity date	33,227
Fair value, single maturity date	33,236
Amortized cost	41,732	$ 59,884
Fair value	42,048	60,193
Residential Mortgage Backed Securities [Member]
Amortized cost, without single maturity date	6,124
Fair value, without single maturity date	6,429
Amortized cost	6,124	7,727
Fair value	6,429	8,037
Collateralized Mortgage Backed Securities [Member]
Amortized cost, without single maturity date	2,381
Fair value, without single maturity date	2,383
Amortized cost	2,381	2,986
Fair value	$ 2,383	$ 2,977

Note 3 - Securities - Sales of Equity Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Proceeds	$ 0	$ 0	$ 0	$ 3,722
Gross gains	0	0	0	295
Gross losses	$ 0	$ 0	$ 0	$ 0

Note 3 - Securities - Securities with Unrealized Losses (Details) - Collateralized Mortgage Backed Securities [Member] Pure in Thousands, $ in Thousands	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Count, less than 12 months	0	3
Collateralized mortgage obligations - residential, fair value	$ 0	$ 1,566
Unrealized loss, less than 12 months	$ 0	$ (10)
Count, 12 months or more	3	1
Fair value, 12 months or more	$ 1,695	$ 937
Unrealized loss, 12 months or more	$ (2)	$ (3)
Count, total	3	4
Fair value, total	$ 1,695	$ 2,503
Unrealized loss, total	$ (2)	$ (13)

Note 4 - Loans Receivable (Details Textual) Pure in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019	Dec. 31, 2019 USD ($)
Reserve for Uncollected Loan Interest	$ 135,000		$ 81,000
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend	$ 0		$ 0
Financing Receivable, Modifications, Number of Contracts	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0
Paycheck Protection Program CARES Act [Member]
Proceeds from Issuance of Long-term Debt, Total	$ 11,000,000

Note 4 - Loans Receivable - Loans Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Loans receivable	$ 1,073,536		$ 1,174,728
Net deferred loan origination costs	(367)		(912)
Allowance for loan losses	(8,011)	$ (8,156)	(7,632)	$ (7,603)	$ (7,824)	$ (8,470)
Loans, net	1,065,892		1,168,008
Commercial Portfolio Segment [Member]
Loans receivable	379,638		418,343
Allowance for loan losses	(1,480)	(1,658)	(2,065)	(2,040)	(2,044)	(2,272)
Consumer Portfolio Segment [Member]
Loans receivable	1,784		2,211
Allowance for loan losses	(48)	(46)	(40)	(36)	(31)	(28)
One-to-Four Family Residential Real Estate [Member] \| Real Estate Portfolio [Member]
Loans receivable	44,812		55,750
Allowance for loan losses	(623)	(665)	(675)	(580)	(563)	(699)
Multi-family Mortgage [Member] \| Real Estate Portfolio [Member]
Loans receivable	522,825		563,750
Allowance for loan losses	(4,143)	(4,185)	(3,676)	(3,728)	(3,988)	(3,991)
Nonresidential Real Estate [Member] \| Real Estate Portfolio [Member]
Loans receivable	124,477		134,674
Allowance for loan losses	$ (1,717)	$ (1,602)	$ (1,176)	$ (1,217)	$ (1,195)	$ (1,476)

Note 4 - Loans Receivable - Allowance for Loan Losses and Loans Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Allowance for loan losses, individually evaluated for impairment	$ 20		$ 0
Allowance for loan losses, collectively evaluated for impairment	7,991		7,632
Allowance for loan losses	8,011	$ 8,156	7,632	$ 7,603	$ 7,824	$ 8,470
Loan balances, individually evaluated for impairment	4,367		2,743
Loan balances, collectively evaluated for impairment	1,069,169		1,171,985
Loans receivable	1,073,536		1,174,728
Net deferred loan origination costs	367		912
Allowance for loan losses	(8,011)	(8,156)	(7,632)	(7,603)	(7,824)	(8,470)
Loans receivable, net of allowance for loan losses: September 30, 2020, $8,011 and December 31, 2019, $7,632	1,065,892		1,168,008
Nonresidential Real Estate [Member]
Allowance for loan losses, individually evaluated for impairment			0
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate [Member]
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, collectively evaluated for impairment	623		675
Allowance for loan losses	623	665	675	580	563	699
Loan balances, individually evaluated for impairment	1,746		1,835
Loan balances, collectively evaluated for impairment	43,066		53,915
Loans receivable	44,812		55,750
Allowance for loan losses	(623)	(665)	(675)	(580)	(563)	(699)
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member]
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, collectively evaluated for impairment	4,143		3,676
Allowance for loan losses	4,143	4,185	3,676	3,728	3,988	3,991
Loan balances, individually evaluated for impairment	596		620
Loan balances, collectively evaluated for impairment	522,229		563,130
Loans receivable	522,825		563,750
Allowance for loan losses	(4,143)	(4,185)	(3,676)	(3,728)	(3,988)	(3,991)
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member]
Allowance for loan losses, individually evaluated for impairment	20		0
Allowance for loan losses, collectively evaluated for impairment	1,697		1,176
Allowance for loan losses	1,717	1,602	1,176	1,217	1,195	1,476
Loan balances, individually evaluated for impairment	1,870		288
Loan balances, collectively evaluated for impairment	122,607		134,386
Loans receivable	124,477		134,674
Allowance for loan losses	(1,717)	(1,602)	(1,176)	(1,217)	(1,195)	(1,476)
Commercial Portfolio Segment [Member]
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, collectively evaluated for impairment	1,480		2,065
Allowance for loan losses	1,480	1,658	2,065	2,040	2,044	2,272
Loan balances, individually evaluated for impairment	155		0
Loan balances, collectively evaluated for impairment	379,483		418,343
Loans receivable	379,638		418,343
Allowance for loan losses	(1,480)	(1,658)	(2,065)	(2,040)	(2,044)	(2,272)
Consumer Portfolio Segment [Member]
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, collectively evaluated for impairment	48		40
Allowance for loan losses	48	46	40	36	31	28
Loan balances, individually evaluated for impairment	0		0
Loan balances, collectively evaluated for impairment	1,784		2,211
Loans receivable	1,784		2,211
Allowance for loan losses	$ (48)	$ (46)	$ (40)	$ (36)	$ (31)	$ (28)

Note 4 - Loans Receivable - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Beginning balance	$ 8,156	$ 7,824	$ 7,632	$ 8,470
Provision for (recovery of ) loan losses	(187)	(134)	326	3,736
Loans charged off	(16)	(104)	(51)	(4,663)
Recoveries	58	17	104	60
Total ending allowance balance	8,011	7,603	8,011	7,603
Real Estate Portfolio [Member]
Loans charged off	0		0
Commercial Portfolio Segment [Member]
Beginning balance	1,658	2,044	2,065	2,272
Provision for (recovery of ) loan losses	(178)	(8)	(588)	4,203
Loans charged off	0	0	0	(4,443)
Recoveries	0	4	3	8
Total ending allowance balance	1,480	2,040	1,480	2,040
Consumer Portfolio Segment [Member]
Beginning balance	46	31	40	28
Provision for (recovery of ) loan losses	16	10	52	28
Loans charged off	(14)	(5)	(44)	(20)
Recoveries	0	0	0	0
Total ending allowance balance	48	36	48	36
Construction and Land Loans [Member]
Beginning balance		3		4
Provision for (recovery of ) loan losses		(1)		(2)
Loans charged off		0		0
Recoveries		0		0
Total ending allowance balance		2		2
One-to-Four Family Residential Real Estate [Member] \| Real Estate Portfolio [Member]
Beginning balance	665	563	675	699
Provision for (recovery of ) loan losses	(42)	56	(63)	(30)
Loans charged off	(2)	(44)	(7)	(117)
Recoveries	2	5	18	28
Total ending allowance balance	623	580	623	580
Multi-family Mortgage [Member] \| Real Estate Portfolio [Member]
Beginning balance	4,185	3,988	3,676	3,991
Provision for (recovery of ) loan losses	(98)	(268)	384	(287)
Loans charged off	0	0	0	0
Recoveries	56	8	83	24
Total ending allowance balance	4,143	3,728	4,143	3,728
Nonresidential Real Estate [Member] \| Real Estate Portfolio [Member]
Beginning balance	1,602	1,195	1,176	1,476
Provision for (recovery of ) loan losses	115	77	541	(176)
Loans charged off		(55)		(83)
Recoveries	0	0	0	0
Total ending allowance balance	$ 1,717	$ 1,217	$ 1,717	$ 1,217

Note 4 - Loans Receivable - Loans Individually Evaluated for Impairment By Class (Details) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Loan balance, with no allowance recorded	$ 4,425,000	$ 4,425,000	$ 3,068,000
Recorded investment, with no allowance recorded	4,079,000	4,079,000	2,743,000
Partial charge-off, with no allowance recorded	358,000	358,000	339,000
Average investment in impaired loans, with no allowance recorded	3,629,000	2,981,000	3,434,000
Interest income recognized, with no allowance recorded	45,000	119,000	90,000
Impaired Financing Receivable, Related Allowance	20,000	20,000
Loan balance	4,705,000	4,705,000
Recorded investment	4,367,000	4,367,000
Partial charge-off	358,000	358,000
Average investment in impaired loans	3,917,000	3,269,000
Interest income recognized	45,000	119,000
Allowance for loan losses	20,000	20,000	0
Nonresidential Real Estate [Member]
Loan balance, with no allowance recorded			280,000
Recorded investment, with no allowance recorded			288,000
Partial charge-off, with no allowance recorded			0
Average investment in impaired loans, with no allowance recorded			589,000
Interest income recognized, with no allowance recorded			2,000
Allowance for loan losses			0
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate [Member]
Loan balance, with no allowance recorded	2,092,000	2,092,000	2,168,000
Recorded investment, with no allowance recorded	1,746,000	1,746,000	1,835,000
Partial charge-off, with no allowance recorded	358,000	358,000	339,000
Average investment in impaired loans, with no allowance recorded	1,760,000	1,798,000	2,208,000
Interest income recognized, with no allowance recorded	10,000	34,000	51,000
Allowance for loan losses	0	0	0
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member]
Allowance for loan losses	0	0	0
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| ILLINOIS
Loan balance, with no allowance recorded	596,000	596,000	620,000
Recorded investment, with no allowance recorded	596,000	596,000	620,000
Partial charge-off, with no allowance recorded	0	0	0
Average investment in impaired loans, with no allowance recorded	600,000	608,000	637,000
Interest income recognized, with no allowance recorded	8,000	26,000	37,000
Allowance for loan losses			0
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member]
Loan balance, with no allowance recorded	1,582,000	1,582,000
Recorded investment, with no allowance recorded	1,582,000	1,582,000
Partial charge-off, with no allowance recorded	0	0
Average investment in impaired loans, with no allowance recorded	791,000	316,000
Interest income recognized, with no allowance recorded	0	32,000
Loan balance, with allowance recorded	280,000	280,000
Recorded investment, with allowance recorded	288,000	288,000
Partial charge-off, with allowance recorded	0	0
Impaired Financing Receivable, Related Allowance	20,000	20,000
Average investment in impaired loans, with allowance recorded	288,000	288,000
Interest income recognized, with allowance recorded	0	0
Allowance for loan losses	20,000	20,000	0
Commercial Portfolio Segment [Member]
Allowance for loan losses	0	0	$ 0
Commercial Portfolio Segment [Member] \| Other [Member]
Loan balance, with no allowance recorded	155,000	155,000
Recorded investment, with no allowance recorded	155,000	155,000
Partial charge-off, with no allowance recorded	0	0
Average investment in impaired loans, with no allowance recorded	478,000	259,000
Interest income recognized, with no allowance recorded	$ 27,000	$ 27,000

Note 4 - Loans Receivable - Recorded Investment in Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Loan balance	$ 2,348	$ 925
Recorded investment	2,335	800
Loans past due over 90 days, still accruing	0	47
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate [Member]
Loan balance	485	598
Recorded investment	465	512
Loans past due over 90 days, still accruing	0	0
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member]
Loan balance	1,863	280
Recorded investment	1,870	288
Loans past due over 90 days, still accruing	$ 0	0
Finance Leases Portfolio Segment [Member] \| Investment Rated Commercial Leases [Member]
Loan balance		47
Recorded investment		0
Loans past due over 90 days, still accruing		$ 47

Note 4 - Loans Receivable - Aging of the Recorded Investment of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Past Due	$ 3,684	$ 5,103
Loans Not Past Due	1,069,852	1,169,625
Total Loans	1,073,536	1,174,728
Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	1,129	3,431
Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	223	830
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	2,332	842
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Owner Occupied [Member]
Past Due	510	1,624
Loans Not Past Due	35,604	43,365
Total Loans	36,114	44,989
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Owner Occupied [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	48	777
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Owner Occupied [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	340
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Owner Occupied [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	462	507
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Non-owner Occupied [Member]
Past Due	98	295
Loans Not Past Due	8,600	10,466
Total Loans	8,698	10,761
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Non-owner Occupied [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	3	280
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Non-owner Occupied [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	95	15
Real Estate Portfolio [Member] \| One-to-Four Family Residential Real Estate, Non-owner Occupied [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| ILLINOIS
Past Due	0	1,283
Loans Not Past Due	224,919	246,680
Total Loans	224,919	247,963
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| Other [Member]
Past Due	0	0
Loans Not Past Due	297,906	315,787
Total Loans	297,906	315,787
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| ILLINOIS
Past Due	0	981
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Other [Member]
Past Due	0	0
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| ILLINOIS
Past Due	0	302
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Other [Member]
Past Due	0	0
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| ILLINOIS
Past Due	0	0
Real Estate Portfolio [Member] \| Multi-family Mortgage [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Other [Member]
Past Due	0	0
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member]
Past Due	1,870	288
Loans Not Past Due	122,607	134,386
Total Loans	124,477	134,674
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	0
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	1,870	288
Commercial Portfolio Segment [Member] \| Commercial Lines and Loans for Operations [Member]
Past Due	0
Loans Not Past Due	90,767
Total Loans	90,767
Commercial Portfolio Segment [Member] \| Commercial Lines and Loans for Operations [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	0
Commercial Portfolio Segment [Member] \| Commercial Lines and Loans for Operations [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0
Commercial Portfolio Segment [Member] \| Commercial Lines and Loans for Operations [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0
Commercial Portfolio Segment [Member] \| Commercial Loans [Member]
Past Due		0
Loans Not Past Due		133,976
Total Loans		133,976
Commercial Portfolio Segment [Member] \| Asset-based [Member]
Past Due	0	0
Loans Not Past Due	1,471	11,738
Total Loans	1,471	11,738
Commercial Portfolio Segment [Member] \| Asset-based [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	0	0
Commercial Portfolio Segment [Member] \| Asset-based [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	0
Commercial Portfolio Segment [Member] \| Asset-based [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	0
Finance Leases Portfolio Segment [Member] \| Equipment Finance Leases, Government [Member]
Past Due	0	0
Loans Not Past Due	71,504	33,555
Total Loans	71,504	33,555
Finance Leases Portfolio Segment [Member] \| Equipment Finance Leases, Government [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	0	0
Finance Leases Portfolio Segment [Member] \| Equipment Finance Leases, Government [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	0
Finance Leases Portfolio Segment [Member] \| Equipment Finance Leases, Government [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	0
Finance Leases Portfolio Segment [Member] \| Investment Rated Commercial Leases [Member]
Past Due	563	873
Loans Not Past Due	81,449	101,015
Total Loans	82,012	101,888
Finance Leases Portfolio Segment [Member] \| Investment Rated Commercial Leases [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	439	826
Finance Leases Portfolio Segment [Member] \| Investment Rated Commercial Leases [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	124	0
Finance Leases Portfolio Segment [Member] \| Investment Rated Commercial Leases [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	47
Finance Leases Portfolio Segment [Member] \| Other [Member]
Past Due	633	679
Loans Not Past Due	133,251	136,507
Total Loans	133,884	137,186
Finance Leases Portfolio Segment [Member] \| Other [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	633	543
Finance Leases Portfolio Segment [Member] \| Other [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	0	136
Finance Leases Portfolio Segment [Member] \| Other [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	0	0
Consumer Portfolio Segment [Member]
Past Due	10	61
Loans Not Past Due	1,774	2,150
Total Loans	1,784	2,211
Consumer Portfolio Segment [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past Due	6	24
Consumer Portfolio Segment [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past Due	4	37
Consumer Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past Due	$ 0	$ 0

Note 4 - Loans Receivable - PPP activity (Details) $ in Thousands	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Number of loans	146
Loans receivable, net of allowance for loan losses: September 30, 2020, $8,011 and December 31, 2019, $7,632	$ 1,065,892	$ 1,168,008
Paycheck Protection Program Loan Origination [Member]
Number of loans	315
Originated	$ 11,160
Paycheck Protection Program CARES Act [Member]
Number of loans	310
Loans receivable, net of allowance for loan losses: September 30, 2020, $8,011 and December 31, 2019, $7,632	$ 11,042

Note 4 - Loans Receivable - COVID Loan Forbearance Program (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Number of loans	146
Principal balance	$ 95,539
Principal Amount Deferred	$ 608
COVID 19 [Member] \| Standard Forbearance Agreement [Member] \| Finance Leases Portfolio Segment [Member]
Number of loans	25
Principal balance	$ 9,211
Principal Amount Deferred	$ 0
Multi-family Mortgage [Member] \| COVID 19 [Member] \| Small Investment Property Forbearance Agreement [Member]
Number of loans	15
Principal balance	$ 4,511
Principal Amount Deferred	$ 46
Multi-family Mortgage [Member] \| COVID 19 [Member] \| Standard Forbearance Agreement [Member]
Number of loans	53
Principal balance	$ 42,663
Principal Amount Deferred	$ 185
Nonresidential Real Estate [Member] \| COVID 19 [Member] \| Small Investment Property Forbearance Agreement [Member]
Number of loans	15
Principal balance	$ 5,871
Principal Amount Deferred	$ 93
Nonresidential Real Estate [Member] \| COVID 19 [Member] \| Standard Forbearance Agreement [Member]
Number of loans	28
Principal balance	$ 31,861
Principal Amount Deferred	$ 273
One-to-Four Family Residential Real Estate [Member] \| COVID 19 [Member] \| Standard Forbearance Agreement [Member]
Number of loans	10
Principal Amount Deferred	$ 11
One To Four Family Residential Real Estate Loans [Member] \| COVID 19 [Member] \| Standard Forbearance Agreement [Member]
Principal balance	$ 1,422

Note 5 - Other Real Estate Owned (Details Textual) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Repossessed Assets, Total	$ 0	$ 0
Mortgage Loans in Process of Foreclosure, Amount	$ 180,000	$ 237,000

Note 5 - Other Real Estate Owned - Real Estate Acquired Through Foreclosure (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Valuation allowance	$ 0	$ 0	$ 0	$ (38)	$ (21)	$ (23)
Other real estate owned, net	110	$ 143	186	$ 269	$ 497	$ 1,226
One-to-Four Family Residential Real Estate [Member]
Balance	110		186
Valuation allowance	0		0
Other real estate owned, net	$ 110		$ 186

Note 5 - Other Real Estate Owned - Roll Forward of OREO (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Beginning balance	$ 143	$ 497	$ 186	$ 1,226	$ 1,226
New foreclosed properties	0	30	33	76
Valuation adjustments	0	(17)	0	(38)	0
Sales and other reductions	(33)	(241)	(109)	(995)
Ending balance	$ 110	$ 269	$ 110	$ 269	$ 186

Note 5 - Other Real Estate Owned - Activity in the Valuation Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Beginning balance	$ 0	$ 21	$ 0	$ 23
Other real estate owned valuation adjustments	0	17	0	38
Reductions from sales of OREO	0	0	0	(23)
Ending balance	$ 0	$ 38	$ 0	$ 38

Note 6 - Leases (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
Note 6 - Leases (Details Textual) - USD ($)	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating Lease, Right-of-Use Asset, Amortization Expense	$ 221,000	$ 212,000	$ 660,000	$ 636,000
Operating Lease, Weighted Average Remaining Lease Term (Year)	8 years 4 months 24 days		8 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	3.13%		3.13%

Note 6 - Leases - Classification of Right of Use and Lease Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Gross carrying amount	$ 6,694	$ 0
New lease obligation	111	6,694
Accumulated amortization	(1,508)	(848)
Net carrying value	5,297	5,846
Right of use lease obligations	5,297
Other Liabilities [Member]
Right of use lease obligations	$ 5,297	$ 5,846

Note 6 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating lease cost	$ 221	$ 212	$ 660	$ 636
Short-term lease cost	42	26	113	86
Sublease income	(19)	(17)	(56)	(32)
Total lease cost	244	221	717	690
Operating cash flows from operating leases	$ 238	$ 225	$ 709	$ 674

Note 6 - Leases - Future Minimum Payments (Details) $ in Thousands	Sep. 30, 2020 USD ($)
2021	$ 957
2022	991
2023	1,002
2024	582
2025	505
Thereafter	2,344
Total future minimum operating lease payments	6,381
Amounts representing interest	(1,084)
Present value of net future minimum operating lease payments	$ 5,297

Note 7 - Borrowings (Details Textual) - USD ($) $ in Thousands	Apr. 01, 2020	Sep. 30, 2020	Dec. 31, 2019
Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value, Total		$ 1,200	$ 2,000
Debt, Long-term and Short-term, Combined Amount, Total			$ 61
Federal Home Loan Bank Advances [Member]
Debt, Long-term and Short-term, Combined Amount, Total		$ 0
Line of Credit [Member] \| Unsecured Debt [Member]
Line of Credit, Current	$ 5,000
Line of Credit [Member] \| Unsecured Debt [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.75%

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Note 7 - Borrowings - Advances from the FHLB (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fixed-rate advance from FHLB, due within 1 year, contractual rate	0.00%	0.00%
Fixed-rate advance from FHLB, due within 1 year, amount	$ 4,000	$ 0

Note 7 - Borrowings - Securities Sold Under Agreements to Repurchase (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Repurchase agreements and repurchase-to-maturity transactions	$ 61
Gross amount of recognized liabilities for repurchase agreements in Consolidated Statements of Financial Condition	61
Debt Instrument, Redemption, Period One [Member]
Repurchase agreements and repurchase-to-maturity transactions	61
Debt Instrument, Redemption, Period Two [Member]
Repurchase agreements and repurchase-to-maturity transactions	0
Debt Instrument, Redemption, Period Three [Member]
Repurchase agreements and repurchase-to-maturity transactions	0
Debt Instrument, Redemption, Period Four [Member]
Repurchase agreements and repurchase-to-maturity transactions	$ 0

Note 8 - Fair Value (Details Textual) Pure in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
Note 8 - Fair Value (Details Textual) Pure in Thousands	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Impaired Financing Receivable, Related Allowance	$ 20,000		$ 20,000
Number of Loans Measured for Impairment Using Fair Value of Collateral					0
Provision for Loan and Lease Losses, Total	(187,000)	$ (134,000)	326,000	$ 3,736,000
Other Real Estate, Valuation Adjustments	(0)	17,000	(0)	38,000	$ 0
Impaired Loans [Member]
Provision for Loan and Lease Losses, Total	20,000	0	20,000	0
Real Estate Portfolio [Member] \| Nonresidential Real Estate [Member]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	288,000		288,000
Impaired Financing Receivable, Related Allowance	20,000		20,000
Provision for Loan and Lease Losses, Total	$ 115,000	$ 77,000	$ 541,000	$ (176,000)

Note 8 - Fair Value - Financial Assets At Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Securities	$ 42,048	$ 60,193
Certificates of Deposit [Member]
Securities	32,724	48,666
US States and Political Subdivisions Debt Securities [Member]
Securities	512	513
Residential Mortgage Backed Securities [Member]
Securities	6,429	8,037
Collateralized Mortgage Backed Securities [Member]
Securities	2,383	2,977
Fair Value, Inputs, Level 1 [Member]
Securities	0	0
Fair Value, Inputs, Level 1 [Member] \| Certificates of Deposit [Member]
Securities	0	0
Fair Value, Inputs, Level 1 [Member] \| US States and Political Subdivisions Debt Securities [Member]
Securities	0	0
Fair Value, Inputs, Level 1 [Member] \| Residential Mortgage Backed Securities [Member]
Securities	0	0
Fair Value, Inputs, Level 1 [Member] \| Collateralized Mortgage Backed Securities [Member]
Securities	0	0
Fair Value, Inputs, Level 2 [Member]
Securities	42,048	60,193
Fair Value, Inputs, Level 2 [Member] \| Certificates of Deposit [Member]
Securities	32,724	48,666
Fair Value, Inputs, Level 2 [Member] \| US States and Political Subdivisions Debt Securities [Member]
Securities	512	513
Fair Value, Inputs, Level 2 [Member] \| Residential Mortgage Backed Securities [Member]
Securities	6,429	8,037
Fair Value, Inputs, Level 2 [Member] \| Collateralized Mortgage Backed Securities [Member]
Securities	2,383	2,977
Fair Value, Inputs, Level 3 [Member]
Securities	0	0
Fair Value, Inputs, Level 3 [Member] \| Certificates of Deposit [Member]
Securities	0	0
Fair Value, Inputs, Level 3 [Member] \| US States and Political Subdivisions Debt Securities [Member]
Securities	0	0
Fair Value, Inputs, Level 3 [Member] \| Residential Mortgage Backed Securities [Member]
Securities	0	0
Fair Value, Inputs, Level 3 [Member] \| Collateralized Mortgage Backed Securities [Member]
Securities	$ 0	$ 0

Note 8 - Fair Value - Financial Assets At Fair Value on Non-recurring Basis (Details) - Real Estate Portfolio [Member] - Nonresidential Real Estate [Member] - Fair Value, Nonrecurring [Member] $ in Thousands	Sep. 30, 2020 USD ($)
Impaired loans, fair value	$ 268
Fair Value, Inputs, Level 1 [Member]
Impaired loans, fair value	0
Fair Value, Inputs, Level 2 [Member]
Impaired loans, fair value	0
Fair Value, Inputs, Level 3 [Member]
Impaired loans, fair value	$ 268

Note 8 - Fair Value - Quantitative Information for Financial Instruments on Non-recurring Basis (Details) - Real Estate Portfolio [Member] - Nonresidential Real Estate [Member] - Fair Value, Nonrecurring [Member] $ in Thousands	Sep. 30, 2020 USD ($)
Impaired loans, fair value	$ 268
Fair Value, Inputs, Level 3 [Member]
Impaired loans, fair value	$ 268
Fair Value, Inputs, Level 3 [Member] \| Valuation, Market Approach [Member] \| Measurement Input, Discount Rate [Member]
Imapired loans, measurement input	0.220

Note 8 - Fair Value - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Securities	$ 42,048	$ 60,193
Fair Value, Inputs, Level 1 [Member]
Securities	0	0
Fair Value, Inputs, Level 2 [Member]
Securities	42,048	60,193
Fair Value, Inputs, Level 3 [Member]
Securities	0	0
Reported Value Measurement [Member]
Cash and cash equivalents	429,665	190,325
Securities	42,048	60,193
Loans receivable, net of allowance for loan losses	1,065,892	1,168,008
FHLB and FRB stock	7,490	7,490
Accrued interest receivable	4,354	4,563
Certificates of deposit	301,351	402,034
Borrowings	4,000	61
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	429,665	190,325
Securities	42,048	60,193
Loans receivable, net of allowance for loan losses	1,073,308	1,177,459
Accrued interest receivable	4,354	4,563
Certificates of deposit	302,791	402,914
Borrowings	3,997	61
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	13,740	9,785
Securities	0	0
Loans receivable, net of allowance for loan losses	0	0
FHLB and FRB stock	0	0
Accrued interest receivable	0	0
Certificates of deposit	0	0
Borrowings	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents	415,925	180,540
Securities	42,048	60,193
Loans receivable, net of allowance for loan losses	0	0
FHLB and FRB stock	0	0
Accrued interest receivable	158	252
Certificates of deposit	302,791	402,914
Borrowings	3,997	61
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents	0	0
Securities	0	0
Loans receivable, net of allowance for loan losses	1,073,308	1,177,459
FHLB and FRB stock	0	0
Accrued interest receivable	4,196	4,311
Certificates of deposit	0	0
Borrowings	$ 0	$ 0

Note 9 - Revenue from Contracts with Customers (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 833,000	$ 983,000	$ 2,456,000	$ 2,887,000
Credit and Debit Card [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 394,000	$ 395,000	$ 1,100,000	$ 1,200,000

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
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-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856