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Share-Based Compensation Stock Option Valuation Assumptions (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Expected life (years) 5 years 15 days 5 years 15 days
Expected volatility - minimum 64.60% 64.10%
Expected volatility - maximum 66.00% 66.00%
Expected dividend yield 0.00% 0.00%
Risk-free interest rate - minimum 2.10% 1.40%
Risk-free interest rate - maximum 2.40% 2.40%
Weighted average fair value of options granted during the period (in dollars per share) $ 0.10 $ 0.23