INCOME TAXES - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 443	$ 13	$ 55
State	207	389	109
Foreign	130	0	0
Total current	780	402	164
Deferred:
Federal	(311)	259	(1,335)
State	(251)	(210)	68
Foreign	(90)	0	0
Total deferred	(652)	49	(1,267)
Income tax expense (benefit)	$ 128	$ 451	$ (1,103)