INCOME TAXES (Details - Unrecognized Tax Benefits) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of unrecognized tax benefits, excluding interest
Balance, beginning of the period	$ 1,127	$ 748
Additions based on tax positions of the current period	525	249
Additions based on tax positions of the prior period	344	130
Balance, end of the period	1,996	1,127
Unrecognized Tax Benefits Including Interest	2,100	$ 1,200
Significant change, decrease in unrecognized income tax benefits	$ 600