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STOCK BASED COMPENSATION (Details 2)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dividend yield
Minimum [Member]    
Risk free interest rate 1.86% 1.48%
Expected term 5 years 3 months 25 days 5 years 6 months 29 days
Expected volatility 112.86% 115.52%
Maximum [Member]    
Risk free interest rate 2.04% 1.55%
Expected term 6 years 4 months 10 days 6 years 22 days
Expected volatility 114.19% 115.58%