Note 3 - Loans Receivable - Nonaccrual Loans by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Nonaccrual loans with allowance	$ 447	$ 2,970
Nonaccrual loans without allowance	12,925	27,545
Nonaccrual loans	13,372	30,515
Real Estate Portfolio Segment [Member] \| One-to-four Family Loan [Member]
Nonaccrual loans with allowance	144	364
Nonaccrual loans without allowance	2,201	1,113
Nonaccrual loans	2,345	1,477
Real Estate Portfolio Segment [Member] \| Commercial Real Estate [Member]
Nonaccrual loans with allowance	4	4
Nonaccrual loans without allowance	3,435	5,594
Nonaccrual loans	3,439	5,598
Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Nonaccrual loans with allowance	8	10
Nonaccrual loans without allowance	6,029	19,534
Nonaccrual loans	6,037	19,544
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member]
Nonaccrual loans with allowance	9	55
Nonaccrual loans without allowance	0	0
Nonaccrual loans	9	55
Consumer Portfolio Segment [Member] \| Automobile and Other Loan [Member]
Nonaccrual loans with allowance	133	0
Nonaccrual loans without allowance	939	700
Nonaccrual loans	1,072	700
Commercial Portfolio Segment [Member]
Nonaccrual loans with allowance	149	2,537
Nonaccrual loans without allowance	321	604
Nonaccrual loans	$ 470	$ 3,141

First Northwest Bancorp 10-Q