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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
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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