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STOCKHOLDERS' EQUITY (Details) - Stock Options [Member]
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate - minimum 1.84% 1.26%
Risk-free interest rate - maximum 2.01% 1.70%
Volatility - minimum 61.56% 70.44%
Volatility - maximum 63.95% 71.22%
Term (in years)   6 years 3 months
Dividend yield 0.00% 0.00%
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Term (in years) 5 years 6 months  
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Term (in years) 6 years 3 months