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Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025 | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | --- | --- | ---
Total loans, gross | $ 1,402,656 |  | $ 1,382,864 |  |  |
Total loans, gross, percent | 100.00% |  | 100.00% |  |  |
Net deferred loan fees | $ (755) |  | $ (790) |  |  |
Allowance for credit losses | (10,412) | [1] | (10,255) | $ (8,808) | [1] | $ (8,884)
Total loans, net | 1,391,489 |  | 1,371,819 |  |  |
Real Estate Portfolio Segment [Member] | One-to-four Family Residential Loan [Member] |  |  |  |  |  |
Total loans, gross | $ 491,460 |  | $ 473,394 |  |  |
Total loans, gross, percent | 35.00% |  | 34.20% |  |  |
Allowance for credit losses | $ (3,172) | [1] | $ (3,069) | (2,698) | [1] | (2,928)
Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] |  |  |  |  |  |
Total loans, gross | $ 421,085 |  | $ 425,428 |  |  |
Total loans, gross, percent | 30.00% |  | 30.80% |  |  |
Allowance for credit losses | $ (2,221) | [1] | $ (2,260) | (2,632) | [1] | (2,422)
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] |  |  |  |  |  |
Total loans, gross | $ 335,381 |  | $ 336,412 |  |  |
Total loans, gross, percent | 23.90% |  | 24.30% |  |  |
Allowance for credit losses | $ (3,650) | [1] | $ (3,640) | (2,532) | [1] | (2,260)
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |  |  |  |
Total loans, gross | $ 52,173 |  | $ 49,866 |  |  |
Total loans, gross, percent | 3.70% |  | 3.60% |  |  |
Allowance for credit losses | $ (175) | [1] | $ (170) | (119) | [1] | (118)
Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |  |
Total loans, gross | $ 94,531 |  | $ 88,957 |  |  |
Total loans, gross, percent | 6.80% |  | 6.40% |  |  |
Allowance for credit losses | $ (1,096) | [1] | $ (1,009) | (708) | [1] | (1,036)
Other Portfolio Segment [Member] | Commercial Loan [Member] |  |  |  |  |  |
Total loans, gross | 7,861 |  | 7,938 |  |  |
Other Portfolio Segment [Member] | Commercial Loans [Member] |  |  |  |  |  |
Total loans, gross | $ 7,861 |  | $ 7,938 |  |  |
Total loans, gross, percent | 0.60% |  | 0.60% |  |  |
Allowance for credit losses | $ (97) |  | $ (102) | (118) |  | (119)
Other Portfolio Segment [Member] | Consumer Loan [Member] |  |  |  |  |  |
Total loans, gross | $ 165 |  | $ 869 |  |  |
Total loans, gross, percent | 0.00% |  | 0.10% |  |  |
Allowance for credit losses | $ (1) | [1] | $ (5) | $ (1) | [1] | $ (1)
[1] | Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $4.6 million as of March 31, 2026 and December 31, 2025.

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