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Note 2 - INVESTMENT SECURITIES - Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
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Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | $ 220,318 |
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (29,779) |
Securities HTM, 12 Months or More, Fair Value | 136,224 |
Securities HTM, 12 Months or More, Gross Unrealized Losses | (19,296) |
Securities HTM, Total, Fair Value | 356,542 |
Securities HTM, Total, Gross Unrealized Losses | (49,075) |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 18,007 | $ 280,669
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (866) | (48,923)
Securities AFS, 12 Months or More, Fair Value | 274,135 | 42,212
Securities AFS, 12 Months or More, Gross Unrealized Losses | (53,579) | (10,788)
Securities AFS, Total, Fair Value | 292,142 | 322,881
Securities AFS, Total, Gross Unrealized Losses | (54,445) | (59,711)
Municipal securities. |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | 219,789 | 347,651
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (29,758) | (56,798)
Securities HTM, 12 Months or More, Fair Value | 136,224 |
Securities HTM, 12 Months or More, Gross Unrealized Losses | (19,296) |
Securities HTM, Total, Fair Value | 356,013 | 347,651
Securities HTM, Total, Gross Unrealized Losses | (49,054) | (56,798)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 1,910 | 178,172
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (59) | (42,661)
Securities AFS, 12 Months or More, Fair Value | 164,631 | 9,809
Securities AFS, 12 Months or More, Gross Unrealized Losses | (40,070) | (4,039)
Securities AFS, Total, Fair Value | 166,541 | 187,981
Securities AFS, Total, Gross Unrealized Losses | (40,129) | (46,700)
U.S. treasuries and govt. sponsored agency securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 3,866 | 5,138
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (5) | (326)
Securities AFS, 12 Months or More, Fair Value | 14,056 | 10,591
Securities AFS, 12 Months or More, Gross Unrealized Losses | (2,669) | (2,457)
Securities AFS, Total, Fair Value | 17,922 | 15,729
Securities AFS, Total, Gross Unrealized Losses | (2,674) | (2,783)
Residential mortgage-backed and related securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 4,377 | 48,469
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (212) | (3,327)
Securities AFS, 12 Months or More, Fair Value | 56,581 | 17,690
Securities AFS, 12 Months or More, Gross Unrealized Losses | (6,856) | (3,896)
Securities AFS, Total, Fair Value | 60,958 | 66,159
Securities AFS, Total, Gross Unrealized Losses | (7,068) | (7,223)
Asset-backed securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value |  | 13,684
Securities AFS, Less than 12 Months, Gross Unrealized Losses |  | (205)
Securities AFS, 12 Months or More, Fair Value | 10,848 |
Securities AFS, 12 Months or More, Gross Unrealized Losses | (96) |
Securities AFS, Total, Fair Value | 10,848 | 13,684
Securities AFS, Total, Gross Unrealized Losses | (96) | (205)
Other securities |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | 529 |
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (21) |
Securities HTM, Total, Fair Value | 529 |
Securities HTM, Total, Gross Unrealized Losses | (21) |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 7,854 | 35,206
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (590) | (2,404)
Securities AFS, 12 Months or More, Fair Value | 28,019 | 4,122
Securities AFS, 12 Months or More, Gross Unrealized Losses | (3,888) | (396)
Securities AFS, Total, Fair Value | 35,873 | 39,328
Securities AFS, Total, Gross Unrealized Losses | $ (4,478) | $ (2,800)

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