Note 3 - Loans Receivable - Nonaccrual Loans by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Nonaccrual loans with allowance	$ 1,090	$ 484
Nonaccrual loans without allowance	18,796	22,111
Nonaccrual loans	19,886	22,595
Real Estate Portfolio Segment [Member] \| One-to-four Family Loan [Member]
Nonaccrual loans with allowance	115	91
Nonaccrual loans without allowance	1,493	2,181
Nonaccrual loans	1,608	2,272
Real Estate Portfolio Segment [Member] \| Multi-family Loan [Member]
Nonaccrual loans with allowance	17	0
Nonaccrual loans without allowance	0	0
Nonaccrual loans	17	0
Real Estate Portfolio Segment [Member] \| Commercial Real Estate [Member]
Nonaccrual loans with allowance	53	5
Nonaccrual loans without allowance	9,160	9,740
Nonaccrual loans	9,213	9,745
Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Nonaccrual loans with allowance	3	7
Nonaccrual loans without allowance	3,595	5,139
Nonaccrual loans	3,598	5,146
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member]
Nonaccrual loans with allowance	53	53
Nonaccrual loans without allowance	105	0
Nonaccrual loans	158	53
Consumer Portfolio Segment [Member] \| Automobile and Other Loan [Member]
Nonaccrual loans with allowance	35	25
Nonaccrual loans without allowance	983	1,061
Nonaccrual loans	1,018	1,086
Commercial Portfolio Segment [Member]
Nonaccrual loans with allowance	814	303
Nonaccrual loans without allowance	3,460	3,990
Nonaccrual loans	$ 4,274	$ 4,293