Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Details 1)

v3.3.1.900
STOCK-BASED COMPENSATION (Details 1) - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life (years) 6 years 6 years
Dividend 0.00% 0.00%
Weighted-average exercise price $ 26.50 $ 36.9
Weighted-average grant-date fair value $ 21.60 $ 30.1
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility 106.00% 107.00%
Risk-free interest rate 1.70% 1.76%
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility 107.00% 109.00%
Risk-free interest rate 1.95% 1.83%