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STOCKHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Shares under option, granted 270   435  
Weighted Average Exercise Price, Granted $ 0.39   $ 0.32  
Warrant [Member]        
Balance Beginning   200    
Shares under option, granted   0    
Number of Shares, Exercised   (50)    
Number of Warrants, Forfeited   0    
Balance Ending   150   200
Weighted Average Exercise Price, Outstanding Beginning   $ 1.86    
Weighted Average Exercise Price, Granted   0    
Weighted Average Exercise Price, Exercised   0.35    
Weighted Average Exercise Price, Forfeited   0    
Weighted Average Exercise Price, Outstanding Ending   $ 2.42   $ 1.86
Weighted Average Remaining Contractual Life (Years)   6 years 3 months 7 days   5 years 9 months 18 days
Aggregate Intrinsic Value Exercisable Balance   $ 264    
Aggregate Intrinsic Value Exercisable Balance   $ 103   $ 264