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Note 2 - INVESTMENT SECURITIES - Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value |  | $ 163,414
Securities HTM, Less than 12 Months, Gross Unrealized Losses |  | (14,382)
Securities HTM, 12 Months or More, Fair Value |  | 254,361
Securities HTM, 12 Months or More, Gross Unrealized Losses |  | (48,789)
Securities HTM, Total, Fair Value |  | 417,775
Securities HTM, Total, Gross Unrealized Losses |  | (63,171)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | $ 6,461 | 8,657
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (71) | (32)
Securities AFS, 12 Months or More, Fair Value | 229,670 | 261,378
Securities AFS, 12 Months or More, Gross Unrealized Losses | (49,275) | (50,381)
Securities AFS, Total, Fair Value | 236,131 | 270,035
Securities AFS, Total, Gross Unrealized Losses | (49,346) | (50,413)
Municipal securities |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | 176,393 | 162,914
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (59,388) | (14,382)
Securities HTM, 12 Months or More, Fair Value | 291,912 | 253,818
Securities HTM, 12 Months or More, Gross Unrealized Losses | (60,268) | (48,782)
Securities HTM, Total, Fair Value | 468,305 | 416,732
Securities HTM, Total, Gross Unrealized Losses | (119,656) | (63,164)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 1,421 | 798
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (19) | (6)
Securities AFS, 12 Months or More, Fair Value | 157,552 | 163,777
Securities AFS, 12 Months or More, Gross Unrealized Losses | (42,348) | (40,083)
Securities AFS, Total, Fair Value | 158,973 | 164,575
Securities AFS, Total, Gross Unrealized Losses | (42,367) | (40,089)
Other securities |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value |  | 500
Securities HTM, 12 Months or More, Fair Value |  | 543
Securities HTM, 12 Months or More, Gross Unrealized Losses |  | (7)
Securities HTM, Total, Fair Value |  | 1,043
Securities HTM, Total, Gross Unrealized Losses |  | (7)
U.S. treasuries and govt. sponsored agency securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value |  | 6,522
Securities AFS, Less than 12 Months, Gross Unrealized Losses |  | (2)
Securities AFS, 12 Months or More, Fair Value | 13,607 | 13,369
Securities AFS, 12 Months or More, Gross Unrealized Losses | (1,870) | (2,527)
Securities AFS, Total, Fair Value | 13,607 | 19,891
Securities AFS, Total, Gross Unrealized Losses | (1,870) | (2,529)
Residential mortgage-backed and related securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 4,560 | 1,337
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (51) | (24)
Securities AFS, 12 Months or More, Fair Value | 33,832 | 48,520
Securities AFS, 12 Months or More, Gross Unrealized Losses | (3,886) | (5,578)
Securities AFS, Total, Fair Value | 38,392 | 49,857
Securities AFS, Total, Gross Unrealized Losses | (3,937) | (5,602)
Corporate securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 480 |
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (1) |
Securities AFS, 12 Months or More, Fair Value | 24,679 | 35,712
Securities AFS, 12 Months or More, Gross Unrealized Losses | (1,171) | (2,193)
Securities AFS, Total, Fair Value | 25,159 | 35,712
Securities AFS, Total, Gross Unrealized Losses | $ (1,172) | $ (2,193)

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