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Schedule of Assumptions for Fair Value of Option Grant (Details)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Risk-free interest rate   0.99%
Risk-free interest rate (Minimum) 1.00%  
Risk-free interest rate (Maximum) 2.00%  
Expected life (years) 6 years 9 months 4 years 9 months
Expected volatility   94.00%
Expected volatility (Minimum) 94.00%  
Expected volatility (Maximum) 99.00%  
Expected dividend yield 0.00% 0.00%