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Note 10 - Commitments and Contingencies - Schedule of Commitments (Details) - Commitments to Extend Credit [Member] - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Aggregate portfolio principal balance	$ 566,648	$ 535,032
Real Estate Portfolio Segment [Member]
Aggregate portfolio principal balance	297,179	278,805
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Aggregate portfolio principal balance	2,637	3,472
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Aggregate portfolio principal balance	168,195	154,611
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member]
Aggregate portfolio principal balance	29,238	23,751
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member]
Aggregate portfolio principal balance	94,228	94,026
Real Estate Portfolio Segment [Member] | Multifamily [Member]
Aggregate portfolio principal balance	2,881	2,945
Consumer Portfolio Segment [Member]
Aggregate portfolio principal balance	29,345	29,517
Commercial Business Portfolio Segment [Member]
Aggregate portfolio principal balance	240,124	226,710
Commercial Business Portfolio Segment [Member] | Commercial Loan [Member]
Aggregate portfolio principal balance	163,801	164,873
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member]
Aggregate portfolio principal balance	$ 76,323	$ 61,837

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