ACCUMULATED OTHER COMPREHENSIVE INCOME - Components of Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized loss arising during the period, after tax	$ (24,205)	$ (500)
Total other comprehensive (loss) income, before tax	(24,347)	1,198
Total other comprehensive (loss) income, tax effect	0	(539)
Other Comprehensive Income (Loss), Net of Tax, Total	(24,347)	659
Unrealized loss on securities available for sale:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized loss arising during the period, before tax	(37,260)	(4,626)
Unrealized loss arising during the period, tax effect	0	1,508
Unrealized loss arising during the period, after tax	(37,260)	(3,118)
Reclassification adjustment for (gains) losses included in net income, before tax	(14)	1
Reclassification adjustment for (gains) losses included in net income, tax effect	0	0
Reclassification adjustment for (gains) losses included in net income, after tax	(14)	1
Total other comprehensive (loss) income, before tax	(37,274)	(4,625)
Total other comprehensive (loss) income, tax effect	0	1,508
Other Comprehensive Income (Loss), Net of Tax, Total	(37,274)	(3,117)
Unrealized gain on cash flow hedge:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized loss arising during the period, before tax	11,693	3,871
Unrealized loss arising during the period, tax effect	0	(1,138)
Unrealized loss arising during the period, after tax	11,693	2,733
Reclassification adjustment for (gains) losses included in net income, before tax	(356)	1,427
Reclassification adjustment for (gains) losses included in net income, tax effect	0	(420)
Reclassification adjustment for (gains) losses included in net income, after tax	(356)	1,007
Total other comprehensive (loss) income, before tax	11,337	5,298
Total other comprehensive (loss) income, tax effect	0	(1,558)
Other Comprehensive Income (Loss), Net of Tax, Total	11,337	3,740
Net benefit arising from plan amendment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized loss arising during the period, before tax	504	0
Unrealized loss arising during the period, tax effect	0	0
Unrealized loss arising during the period, after tax	504	0
Post-Retirement plans:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized loss arising during the period, before tax	858	315
Unrealized loss arising during the period, tax effect	0	(430)
Unrealized loss arising during the period, after tax	858	(115)
Reclassification adjustment for (gains) losses included in net income, before tax	228	210
Reclassification adjustment for (gains) losses included in net income, tax effect	0	(59)
Reclassification adjustment for (gains) losses included in net income, after tax	228	151
Total other comprehensive (loss) income, before tax	1,590	525
Total other comprehensive (loss) income, tax effect	0	(489)
Other Comprehensive Income (Loss), Net of Tax, Total	$ 1,590	$ 36