INCOME TAXES (Details - Unrecognized Tax Benefits) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of unrecognized tax benefits, excluding interest
Balance, beginning of the period	$ 748	$ 550
Additions based on tax positions of the current period	249	198
Additions based on tax positions of the prior period	130	0
Balance, end of the period	1,127	748
Unrecognized Tax Benefits Including Interest	$ 1,200	$ 700