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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
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)