INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Reconciliation of Income Tax Expense (Benefit) [Abstract]
Income before income taxes	$ 9,676	$ 2,668	$ 13,913	$ 1,920
U.S. statutory tax rate	21.00%	21.00%	21.00%	21.00%
Income tax expense at statutory rate	$ 2,032	$ 560	$ 2,922	$ 403
State tax expense, net of federal	545	157	795	116
Foreign tax rates different from U.S. statutory rate	11	26	15	33
Non-deductible expenses	19	90	28	72
Credits	(5)	0	(9)	0
Other	0	(9)	(68)	(8)
Total tax provision	2,602	$ 824	3,683	$ 616
Accrued interest and tax penalties	0		0
Uncertain tax positions	$ 0		$ 0