ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Changes in AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			$ 3,585
Other comprehensive income (loss), net of tax	$ (415)	$ (447)	(957)	$ 429	$ 1,142
Ending balance	2,628	2,872	2,628	2,872	3,585
Unrealized Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(489)	(51)	(51)
Other comprehensive gain (loss) before reclassifications			489	(580)
Other comprehensive income (loss), net of tax			489	(580)
Ending balance	0	(631)	0	(631)	(489)
Unrealized Gains (Losses) on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			4,074	2,494	2,494
Other comprehensive gain (loss) before reclassifications			(1,362)	2,072
Amounts reclassified from accumulated other comprehensive loss			(84)	(1,063)
Other comprehensive income (loss), net of tax			(1,446)	1,009
Ending balance	$ 2,628	$ 3,503	$ 2,628	$ 3,503	$ 4,074