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Equity - Schedule of Stock Options Fair Value Assumptions Estimated Using Black-Scholes Pricing Model (Details) - $ / shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Risk-free interest rate 2.20% 1.50%
Expected term of options, in years 6 years 7 months 6 days 6 years 6 months
Expected annual volatility 83.00% 80.00%
Expected dividend yield 0.00% 0.00%
Determined weighted average grant date fair value per option $ 0.18 $ 0.11
Warrants [Member]    
Risk-free interest rate 1.79%  
Expected term of options, in years 7 years  
Expected annual volatility 78.00%  
Expected dividend yield 0.00%