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SHAREHOLDERS' EQUITY (Details 2)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected life (years) 7 years 7 years 7 years
Expected forfeiture rate 0.00% 0.00% 0.00%
Expected volatility 53.00% 41.00% 40.00%
Dividend yield 0.00% 0.00% 0.00%
Risk-free interest rate 2.00% 2.00% 2.00%