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Note 2 - INVESTMENT SECURITIES - Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value |  | $ 1,855
Securities HTM, Less than 12 Months, Gross Unrealized Losses |  | (26)
Securities HTM, 12 Months or More, Fair Value |  | 289,891
Securities HTM, 12 Months or More, Gross Unrealized Losses |  | (36,628)
Securities HTM, Total, Fair Value |  | 291,746
Securities HTM, Total, Gross Unrealized Losses |  | (36,654)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | $ 74 | 4,088
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (1) | (395)
Securities AFS, 12 Months or More, Fair Value | 273,307 | 282,087
Securities AFS, 12 Months or More, Gross Unrealized Losses | (42,757) | (47,784)
Securities AFS, Total, Fair Value | 273,381 | 286,175
Securities AFS, Total, Gross Unrealized Losses | (42,758) | (48,179)
Municipal securities |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value | 59,350 | 1,320
Securities HTM, Less than 12 Months, Gross Unrealized Losses | (2,530) | (11)
Securities HTM, 12 Months or More, Fair Value | 274,330 | 289,891
Securities HTM, 12 Months or More, Gross Unrealized Losses | (36,301) | (36,628)
Securities HTM, Total, Fair Value | 333,680 | 291,211
Securities HTM, Total, Gross Unrealized Losses | (38,831) | (36,639)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value |  | 283
Securities AFS, Less than 12 Months, Gross Unrealized Losses |  | (2)
Securities AFS, 12 Months or More, Fair Value | 170,349 | 169,876
Securities AFS, 12 Months or More, Gross Unrealized Losses | (33,722) | (35,588)
Securities AFS, Total, Fair Value | 170,349 | 170,159
Securities AFS, Total, Gross Unrealized Losses | (33,722) | (35,590)
U.S. treasuries and govt. sponsored agency securities |  |
Securities AFS: |  |
Securities AFS, 12 Months or More, Fair Value | 13,943 | 14,018
Securities AFS, 12 Months or More, Gross Unrealized Losses | (2,014) | (2,438)
Securities AFS, Total, Fair Value | 13,943 | 14,018
Securities AFS, Total, Gross Unrealized Losses | (2,014) | (2,438)
Residential mortgage-backed and related securities |  |
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value | 74 |
Securities AFS, Less than 12 Months, Gross Unrealized Losses | (1) |
Securities AFS, 12 Months or More, Fair Value | 51,840 | 59,118
Securities AFS, 12 Months or More, Gross Unrealized Losses | (4,441) | (5,972)
Securities AFS, Total, Fair Value | 51,914 | 59,118
Securities AFS, Total, Gross Unrealized Losses | (4,442) | (5,972)
Asset-backed securities |  |
Securities AFS: |  |
Securities AFS, 12 Months or More, Fair Value |  | 3,804
Securities AFS, 12 Months or More, Gross Unrealized Losses |  | (5)
Securities AFS, Total, Fair Value |  | 3,804
Securities AFS, Total, Gross Unrealized Losses |  | (5)
Other securities |  |
Securities HTM: |  |
Securities HTM, Less than 12 Months, Fair Value |  | 535
Securities HTM, Less than 12 Months, Gross Unrealized Losses |  | (15)
Securities HTM, Total, Fair Value |  | 535
Securities HTM, Total, Gross Unrealized Losses |  | (15)
Securities AFS: |  |
Securities AFS, Less than 12 Months, Fair Value |  | 3,805
Securities AFS, Less than 12 Months, Gross Unrealized Losses |  | (393)
Securities AFS, 12 Months or More, Fair Value | 37,175 | 35,271
Securities AFS, 12 Months or More, Gross Unrealized Losses | (2,580) | (3,781)
Securities AFS, Total, Fair Value | 37,175 | 39,076
Securities AFS, Total, Gross Unrealized Losses | $ (2,580) | $ (4,174)

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