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Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Loans Age Analysis (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Total loans, gross | $ 1,402,656 | $ 1,382,864
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 1,230 | 1,139
Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 715 | 1,135
Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 871 | 104
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 203 | 3
Financial Asset, Past Due [Member] |  |
Total loans, gross | 1,789 | 1,242
Financial Asset, Not Past Due [Member] |  |
Total loans, gross | 1,400,867 | 1,381,622
Real Estate Portfolio Segment [Member] | One-to-four Family Residential Loan [Member] |  |
Total loans, gross | 491,460 | 473,394
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 1,090 | 1,096
Real Estate Portfolio Segment [Member] | One-to-four Family Residential Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 61 | 519
Real Estate Portfolio Segment [Member] | One-to-four Family Residential Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 871 | 104
Real Estate Portfolio Segment [Member] | One-to-four Family Residential Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 103 | 0
Real Estate Portfolio Segment [Member] | One-to-four Family Residential Loan [Member] | Financial Asset, Past Due [Member] |  |
Total loans, gross | 1,035 | 623
Real Estate Portfolio Segment [Member] | One-to-four Family Residential Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Total loans, gross | 490,425 | 472,771
Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] |  |
Total loans, gross | 421,085 | 425,428
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 0 | 0
Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Total loans, gross | 421,085 | 425,428
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] |  |
Total loans, gross | 335,381 | 336,412
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 0 | 0
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 418 | 246
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, Past Due [Member] |  |
Total loans, gross | 418 | 246
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Total loans, gross | 334,963 | 336,166
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |  |
Total loans, gross | 52,173 | 49,866
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 140 | 43
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 236 | 370
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 100 | 3
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, Past Due [Member] |  |
Total loans, gross | 336 | 373
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Total loans, gross | 51,837 | 49,493
Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |
Total loans, gross | 94,531 | 88,957
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 0 | 0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, Past Due [Member] |  |
Total loans, gross | 0 | 0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Total loans, gross | 94,531 | 88,957
Other Portfolio Segment [Member] | Commercial Loan [Member] |  |
Total loans, gross | 7,861 | 7,938
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 0 | 0
Other Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Commercial Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Total loans, gross | 7,861 | 7,938
Other Portfolio Segment [Member] | Consumer Loan [Member] |  |
Total loans, gross | 165 | 869
Total loans,90 days past due and accruing | 0 | 0
Total loans, nonaccrual | 0 | 0
Other Portfolio Segment [Member] | Consumer Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Consumer Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Consumer Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Consumer Loan [Member] | Financial Asset, Past Due [Member] |  |
Total loans, gross | 0 | 0
Other Portfolio Segment [Member] | Consumer Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Total loans, gross | $ 165 | $ 869

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