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Organization and Basis of Presentation (Schedule of Fair Value Assumptions) (Details)
3 Months Ended
Mar. 31, 2016
Risk-free interest rate, minimum 0.64%
Risk-free interest rate, maximum 1.49%
Dividend yield
Volatility of common stock, minimum 103.14%
Volatility of common stock, maximum 103.73%
Estimated annual forfeitures
Minimum [Member]  
Expected term (in years) 2 years
Maximum [Member]  
Expected term (in years) 5 years