2. LIQUIDITY AND MANAGEMENT PLANS (Details Narrative) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Cash and cash equivalents $ 26,718 $ 3,197 $ 21
Working capital 25,800    
Accumulated deficit $ (95,997) $ (83,387)  
IPO [Member]      
Number of shares issued 3,680    
Net proceeds from IPO $ 24,700