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ACQUISITION OF GVR TRADE S.A. (Details) - GVR Trade S.A. - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Jul. 06, 2016
Dec. 31, 2016
Business Acquisition [Line Items]    
Payments to acquire business gross $ 661  
Value of common stock issued $ 545  
Common stock shares issued, share price (in usd per share) $ 4.36  
Consideration Transferred $ 1,200  
Acquisition related costs   $ 92
Goodwill acquired $ 800  
Common Stock    
Business Acquisition [Line Items]    
Number of shares 125