ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in Accumulated Other Comprehensive Income or Loss by Component (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	$ 234,966	$ 201,222	$ 215,309	$ 195,241
Other comprehensive income before reclassification	3,623	14,771	12,734	10,863
Amounts reclassified from accumulated other comprehensive income	6	5	13,255	15
Total other comprehensive income	3,629	14,776	25,989	10,878
Ending balance	245,308	220,654	245,308	220,654
Total
Changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	(42,705)	(69,911)	(65,065)	(66,013)
Total other comprehensive income	3,629	14,776	25,989	10,878
Ending balance	(39,076)	(55,135)	(39,076)	(55,135)
Unrealized Gains and Losses on Securities Available for Sale
Changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	(40,991)	(66,708)	(63,339)	(62,800)
Other comprehensive income before reclassification	3,623	14,771	12,734	10,863
Amounts reclassified from accumulated other comprehensive income	0	0	13,237	0
Total other comprehensive income	3,623	14,771	25,971	10,863
Ending balance	(37,368)	(51,937)	(37,368)	(51,937)
Defined Benefit and Other Benefit Plans
Changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	(1,714)	(3,203)	(1,726)	(3,213)
Other comprehensive income before reclassification	0	0	0	0
Amounts reclassified from accumulated other comprehensive income	6	5	18	15
Total other comprehensive income	6	5	18	15
Ending balance	$ (1,708)	$ (3,198)	$ (1,708)	$ (3,198)