Note 4 - Allowance for Credit Losses on Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Balance			$ 16,987
Charge-offs	$ (554)	$ (2,250)	(1,496)	$ (13,062)	$ (15,505)
Recoveries	101	728	715	1,962
Provision for Credit Losses	532	(620)	182	6,854
Balance	16,388	16,203	16,388	16,203	16,987
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	16,309	18,345	16,987	20,449	20,449
Balance					16,987
Real Estate Portfolio Segment [Member] \| One-to-four Family Loan [Member]
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Provision for Credit Losses	231	(1,012)	(91)	(881)
Balance	3,698	3,876	3,698	3,876
Real Estate Portfolio Segment [Member] \| One-to-four Family Loan [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	3,467	4,888	3,789	4,757	4,757
Balance					3,789
Real Estate Portfolio Segment [Member] \| Multi-family Loan [Member]
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Provision for Credit Losses	(396)	(71)	(658)	69
Balance	1,800	2,562	1,800	2,562
Real Estate Portfolio Segment [Member] \| Multi-family Loan [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	2,196	2,633	2,458	2,493	2,493
Balance					2,458
Real Estate Portfolio Segment [Member] \| Commercial Real Estate [Member]
Charge-offs	0	(656)	(3)	(6,242)	(6,571)
Recoveries	0	6	0	32
Provision for Credit Losses	173	893	(182)	6,505
Balance	3,220	2,705	3,220	2,705
Real Estate Portfolio Segment [Member] \| Commercial Real Estate [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	3,047	2,462	3,405	2,410	2,410
Balance					3,405
Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Charge-offs	(110)	(483)	(481)	(857)	(1,884)
Recoveries	0	0	0	5
Provision for Credit Losses	241	633	812	925
Balance	992	649	992	649
Real Estate Portfolio Segment [Member] \| Construction Loans [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	861	499	661	576	576
Balance					661
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member]
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Provision for Credit Losses	(19)	(49)	92	70
Balance	1,421	1,392	1,421	1,392
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	1,440	1,441	1,329	1,322	1,322
Balance					1,329
Consumer Portfolio Segment [Member] \| Automobile and Other Loan [Member]
Charge-offs	(171)	(106)	(572)	(622)	(745)
Recoveries	91	47	250	164
Provision for Credit Losses	(69)	(172)	186	(192)
Balance	1,820	2,037	1,820	2,037
Consumer Portfolio Segment [Member] \| Automobile and Other Loan [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	1,969	2,268	1,956	2,687	2,687
Balance					1,956
Commercial Portfolio Segment [Member]
Charge-offs	(273)	(1,005)	(440)	(5,341)	(6,305)
Recoveries	10	675	465	1,761
Provision for Credit Losses	371	(842)	23	358
Balance	3,437	2,982	3,437	2,982
Commercial Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance	$ 3,329	$ 4,154	$ 3,389	$ 6,204	6,204
Balance					$ 3,389

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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