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Note 3 - Investment Securities - Contractual Maturities (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | $ 25,093 |
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 24,668 |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One | 1,163 |
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 1,158 |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 153,392 |
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 143,285 |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five | 1,301 |
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 1,278 |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 | 28,620 |
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 | 26,331 |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 5 through 10 | 10,459 |
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 | 9,919 |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 | 0 |
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 | 0 |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 | 5,814 |
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 | 5,327 |
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost | 207,105 |
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value | 194,284 |
Debt Securities, Held-to-maturity, Amortized Cost | 18,737 |
Debt Securities, Held-to-maturity, Fair Value | 17,682 |
Debt Securities, Available-for-Sale, Amortized Cost | 282,527 | $ 304,805
Debt Securities, Available-for-Sale | 262,622 | 276,601
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 18,737 | 16,863
Debt Securities, Held-to-Maturity, Fair Value | 17,682 | 15,679
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] |  |
Debt Securities, Available-for-Sale, Without Maturity, Amortized Cost | 75,422 |
Debt Securities, Available-for-Sale, Without Maturity, Fair Value | 68,338 |
Debt Securities, Held-to-maturity, without single maturity date, Amortized Cost | 0 |
Debt Securities, Held-to-maturity, without single maturity date, Fair Value | 0 |
Debt Securities, Available-for-Sale, Amortized Cost | 75,422 | 81,634
Debt Securities, Available-for-Sale | $ 68,339 | $ 72,790

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