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Note 9 - Commitments and Contingencies - Schedule of Commitments (Details) - Commitments to Extend Credit [Member] - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Aggregate portfolio principal balance	$ 563,748	$ 535,032
Real Estate Portfolio Segment [Member]
Aggregate portfolio principal balance	319,399	278,805
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Aggregate portfolio principal balance	1,240	3,472
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Aggregate portfolio principal balance	173,956	154,611
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member]
Aggregate portfolio principal balance	41,387	23,751
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member]
Aggregate portfolio principal balance	96,527	94,026
Real Estate Portfolio Segment [Member] | Multifamily [Member]
Aggregate portfolio principal balance	6,289	2,945
Consumer Portfolio Segment [Member]
Aggregate portfolio principal balance	28,465	29,517
Commercial Business Portfolio Segment [Member]
Aggregate portfolio principal balance	215,884	226,710
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member]
Aggregate portfolio principal balance	164,181	164,873
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member]
Aggregate portfolio principal balance	$ 51,703	$ 61,837

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