Note 3 - Loans Receivable - Nonaccrual Loans by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Nonaccrual loans with allowance	$ 2,556	$ 747
Nonaccrual loans without allowance	27,820	17,897
Nonaccrual loans	30,376	18,644
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member]
Nonaccrual loans with allowance	312	418
Nonaccrual loans without allowance	1,319	1,426
Nonaccrual loans	1,631	1,844
Real Estate Portfolio Segment [Member] | Multi-family Loan [Member]
Nonaccrual loans with allowance	0	0
Nonaccrual loans without allowance	0	0
Nonaccrual loans	0	0
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Nonaccrual loans with allowance	10	28
Nonaccrual loans without allowance	5,624	0
Nonaccrual loans	5,634	28
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Nonaccrual loans with allowance	16	6
Nonaccrual loans without allowance	19,366	14,980
Nonaccrual loans	19,382	14,986
Consumer Portfolio Segment [Member] | Home Equity Loan [Member]
Nonaccrual loans with allowance	87	92
Nonaccrual loans without allowance	29	31
Nonaccrual loans	116	123
Consumer Portfolio Segment [Member] | Automobile and Other Loan [Member]
Nonaccrual loans with allowance	31	38
Nonaccrual loans without allowance	863	748
Nonaccrual loans	894	786
Commercial Portfolio Segment [Member]
Nonaccrual loans with allowance	2,100	165
Nonaccrual loans without allowance	619	712
Nonaccrual loans	$ 2,719	$ 877