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SHAREHOLDERS' EQUITY (Details 3)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Stockholders' Equity Note [Abstract]      
Expected lives 6 years 6 years 6 years
Risk-free interest rate 1.77% 2.06% 1.66%
Expected volatility 63.36% 65.45% 62.59%
Expected dividend yield 0.00% 0.00% 0.00%