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Note 2 - INVESTMENT SECURITIES - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Securities HTM: |  |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One | $ 1,230 |
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 1,227 |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five | 29,343 |
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 26,735 |
Securities held to maturity, due after five years, amortized cost | 843,721 |
Securities held to maturity, due after five years, fair value | 763,142 |
Securities HTM, Amortized cost | 874,294 | $ 836,060
Securities held to maturity, fair value | 791,104 | 800,583
Securities AFS: |  |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 3,279 |
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 3,277 |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 20,105 |
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 19,370 |
Securities available for sale, due after five years, amortized cost | 238,901 |
Securities available for sale, due after five years, fair value | 190,636 |
Securities available for sale, single maturity, amortized cost | 262,285 |
Securities available for sale, single maturity, fair value | 213,283 |
Securities AFS, Amortized Cost | 317,770 | 331,337
Available-for-sale Securities, Debt Securities, Total | 264,241 | 281,109
Callable Securities [Member] |  |
Securities HTM: |  |
Securities held to maturity, callable, amortized cost | 309,893 |
Securities held to maturity, callable, fair value | 298,863 |
Securities AFS: |  |
Securities AFS, Amortized Cost | 241,535 |
Available-for-sale Securities, Debt Securities, Total | 194,695 |
Municipal securities |  |
Securities HTM: |  |
Securities HTM, Amortized cost | 845,226 | 806,992
Securities held to maturity, fair value | 757,653 | 766,866
Securities AFS: |  |
Securities AFS, Amortized Cost | 203,776 | 204,664
Available-for-sale Securities, Debt Securities, Total | 158,759 | 164,575
Municipal securities | Callable Securities [Member] |  |
Securities HTM: |  |
Securities held to maturity, callable, amortized cost | 281,875 |
Securities held to maturity, callable, fair value | 266,459 |
Securities AFS: |  |
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost | 203,630 |
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value | 158,627 |
Corporate securities |  |
Securities HTM: |  |
Securities HTM, Amortized cost | 28,018 | 28,018
Securities held to maturity, fair value | 32,405 | 32,675
Securities AFS: |  |
Securities AFS, Amortized Cost | 38,868 | 38,866
Available-for-sale Securities, Debt Securities, Total | 37,037 | 36,677
Corporate securities | Callable Securities [Member] |  |
Securities HTM: |  |
Securities held to maturity, callable, amortized cost | 28,018 |
Securities held to maturity, callable, fair value | 32,404 |
Asset-backed securities |  |
Securities AFS: |  |
Securities AFS, Amortized Cost | 7,644 | 9,053
Available-for-sale Securities, Debt Securities, Total | 7,764 | 9,224
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost | 7,644 |
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value | 7,764 |
Residential mortgage-backed and related securities |  |
Securities AFS: |  |
Securities AFS, Amortized Cost | 47,841 | 55,641
Available-for-sale Securities, Debt Securities, Total | 43,194 | 50,042
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost | 47,841 |
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value | 43,194 |
Other securities |  |
Securities HTM: |  |
Securities HTM, Amortized cost | 1,050 | 1,050
Securities held to maturity, fair value | 1,046 | $ 1,042
Other securities | Callable Securities [Member] |  |
Securities AFS: |  |
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost | 37,905 |
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value | $ 36,068 |

X
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