INCOME TAXES (Schedule of Uncertain Tax Benefits Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Uncertain Tax Benefits [Roll Forward]
Balance, beginning of year	$ 676	$ 676	$ 424
Gross increases:
Current year tax positions	0	53	273
Prior years' tax positions	26	0	0
Gross decreases:
Statute of limitations lapses	0	0	(21)
Other	0	(53)	0
Balance, end of year	$ 702	$ 676	$ 676