ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Changes in AOCI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Changes in each component of accumulated other comprehensive income (loss), net of tax
Beginning balance	$ 538,385	$ 503,815	$ 452,871
Total other comprehensive income (loss), net of tax	27,154	8,174	21,388
Ending balance	592,581	538,385	503,815
Investment Securities
Changes in each component of accumulated other comprehensive income (loss), net of tax
Beginning balance	(121,491)	(127,922)	(149,109)
Other comprehensive (loss) income before reclassifications	25,597	(6,140)	14,325
Amounts reclassified from AOCI	5,000	12,571	6,862
Total other comprehensive income (loss), net of tax	30,597	6,431	21,187
Ending balance	(90,894)	(121,491)	(127,922)
Derivatives
Changes in each component of accumulated other comprehensive income (loss), net of tax
Beginning balance	6,494	5,029	4,645
Other comprehensive (loss) income before reclassifications	(3,254)	1,465	384
Amounts reclassified from AOCI	0	0	0
Total other comprehensive income (loss), net of tax	(3,254)	1,465	384
Ending balance	3,240	6,494	5,029
Defined Benefit Plans
Changes in each component of accumulated other comprehensive income (loss), net of tax
Beginning balance	575	297	480
Other comprehensive (loss) income before reclassifications	(189)	280	(134)
Amounts reclassified from AOCI	0	(2)	(49)
Total other comprehensive income (loss), net of tax	(189)	278	(183)
Ending balance	386	575	297
AOCI
Changes in each component of accumulated other comprehensive income (loss), net of tax
Beginning balance	(114,422)	(122,596)	(143,984)
Other comprehensive (loss) income before reclassifications	22,154	(4,395)	14,575
Amounts reclassified from AOCI	5,000	12,569	6,813
Total other comprehensive income (loss), net of tax	27,154	8,174	21,388
Ending balance	$ (87,268)	$ (114,422)	$ (122,596)