7. INCOME TAXES (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Deferred tax expense	$ 1,900
Federal NOL carryforwards	19,809
State NOL carryforwards	1,096
R&D & other credit carryforwards	685	$ 501
Uncertain tax positions	$ 0
Operating loss expiration date	Dec. 31, 2036