ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Changes in AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 3,585
Other comprehensive loss, net of tax	(1,146)	$ (2,485)	$ 1,142
Ending balance	2,439	(42)	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	(545)
Other comprehensive loss, net of tax	489	(545)
Ending balance	0	(596)	(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	(1,635)	(2,032)
Amounts reclassified from accumulated other comprehensive loss	0	92
Other comprehensive loss, net of tax	(1,635)	(1,940)
Ending balance	$ 2,439	$ 554	$ 4,074