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Stockholders' Equity - Schedule of Estimates of Weighted Average Fair Value (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Volatility rate minimum 96.00% 96.00%
Volatility rate maximum 98.00% 101.00%
Risk-free interest rate    
Expected term 0 years 7 years 0 years 7 years
Minimum [Member]        
Risk-free interest rate   1.00%   1.00%
Maximum [Member]        
Risk-free interest rate   2.00%   2.00%