ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Schedule of Activity in Accumulated Other Comprehensive Income (Loss), Net of Tax) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Activity in accumulated other comprehensive loss, net of tax
Balance	$ 552,851	$ 495,317
Other comprehensive income (loss) during the period	(2,332)	3,599
Balance	559,912	512,575
Interest Rate Swap [Member]
Activity in accumulated other comprehensive loss, net of tax
Balance	2,676	3,971
Other comprehensive income (loss) during the period	(148)	(525)
Balance	2,528	3,446
Securities Available for Sale [Member]
Activity in accumulated other comprehensive loss, net of tax
Balance	(9,530)	(20,179)
Other comprehensive income (loss) during the period	(2,184)	4,124
Balance	(11,714)	(16,055)
Retirement Plans [Member]
Activity in accumulated other comprehensive loss, net of tax
Balance	9,441	9,722
Other comprehensive income (loss) during the period	0	0
Balance	9,441	9,722
Accumulated Other Comprehensive Income (Loss), Net of Taxes [Member]
Activity in accumulated other comprehensive loss, net of tax
Balance	2,587	(6,486)
Other comprehensive income (loss) during the period	(2,332)	3,599
Balance	$ 255	$ (2,887)