INCOME TAXES (Details - Unrecognized Tax Benefits) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of unrecognized tax benefits, excluding interest
Balance, beginning of the period	$ 1,996	$ 1,127
Additions based on tax positions of the current period	570	525
Additions based on tax positions of the prior period	47	344
Balance, end of the period	2,613	1,996
Unrecognized tax benefits including interest	$ 2,600	$ 2,100