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FAIR VALUE OF EACH OPTION GRANT (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Fair Value Of Each Option Grant Details        
Risk-free interest rate 115.00% 124.00% 116.00% 107.00%
Expected lives, in years 3.4 3.4 3.4 3.3
Expected volatility 40.00% 44.00% 42.00% 46.00%
Expected dividend yield 0.00% 0.00% 0.00% 0.00%