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Employee Stock Options (Details) - Employee Stock Option [Member]
9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Summary of assumptions used to estimate fair value of stock options granted    
Expected dividend yield 0.00% 0.00%
Expected volatility   102.00%
Minimum [Member]    
Summary of assumptions used to estimate fair value of stock options granted    
Expected volatility 95.00%  
Risk-free interest rate 1.50% 1.24%
Expected life of options 2 years 6 months 2 years
Maximum [Member]    
Summary of assumptions used to estimate fair value of stock options granted    
Expected volatility 100.00%  
Risk-free interest rate 1.52% 1.38%
Expected life of options 4 years 2 years 6 months