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Note 2 - INVESTMENT SECURITIES - Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | $ 116,760 | $ 163,414
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (35,514) | (14,382)
Securities HTM, 12 Months or More, Fair Value | 393,482 | 254,361
Securities HTM, 12 Months or More, Gross Unrealized Losses | (66,965) | (48,789)
Securities HTM, Total, Fair Value | 510,242 | 417,775
Securities HTM, Total, Gross Unrealized Losses | (102,479) | (63,171)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 8,126 | 8,657
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (21) | (32)
Securities AFS, 12 Months or More, Fair Value | 247,113 | 261,378
Securities AFS, 12 Months or More, Gross Unrealized Losses | (53,651) | (50,381)
Securities AFS, Total, Fair Value | 255,240 | 270,035
Securities AFS, Total, Gross Unrealized Losses | (53,672) | (50,413)
Municipal securities |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | 116,260 | 162,914
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (35,513) | (14,382)
Securities HTM, 12 Months or More, Fair Value | 392,935 | 253,818
Securities HTM, 12 Months or More, Gross Unrealized Losses | (66,963) | (48,782)
Securities HTM, Total, Fair Value | 509,195 | 416,732
Securities HTM, Total, Gross Unrealized Losses | (102,476) | (63,164)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 789 | 798
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (10) | (6)
Securities AFS, 12 Months or More, Fair Value | 157,969 | 163,777
Securities AFS, 12 Months or More, Gross Unrealized Losses | (45,007) | (40,083)
Securities AFS, Total, Fair Value | 158,759 | 164,575
Securities AFS, Total, Gross Unrealized Losses | (45,017) | (40,089)
U.S. treasuries and govt. sponsored agency securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 3,346 | 6,522
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (1) | (2)
Securities AFS, 12 Months or More, Fair Value | 13,551 | 13,369
Securities AFS, 12 Months or More, Gross Unrealized Losses | (2,160) | (2,527)
Securities AFS, Total, Fair Value | 16,897 | 19,891
Securities AFS, Total, Gross Unrealized Losses | (2,161) | (2,529)
Residential mortgage-backed and related securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 1,261 | 1,337
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (9) | (24)
Securities AFS, 12 Months or More, Fair Value | 41,752 | 48,520
Securities AFS, 12 Months or More, Gross Unrealized Losses | (4,641) | (5,578)
Securities AFS, Total, Fair Value | 43,013 | 49,857
Securities AFS, Total, Gross Unrealized Losses | (4,650) | (5,602)
Asset-backed securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 2,730 |
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (1) |
Securities AFS, Total, Fair Value | 2,730 |
Securities AFS, Total, Gross Unrealized Losses | (1) |
Other securities |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | 500 | 500
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (1) |
Securities HTM, 12 Months or More, Fair Value | 547 | 543
Securities HTM, 12 Months or More, Gross Unrealized Losses | (2) | (7)
Securities HTM, Total, Fair Value | 1,047 | 1,043
Securities HTM, Total, Gross Unrealized Losses | (3) | (7)
Corporate securities |  |
Securities AFS: |  |
Securities AFS, 12 Months or More, Fair Value | 33,841 | 35,712
Securities AFS, 12 Months or More, Gross Unrealized Losses | (1,843) | (2,193)
Securities AFS, Total, Fair Value | 33,841 | 35,712
Securities AFS, Total, Gross Unrealized Losses | $ (1,843) | $ (2,193)

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