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Stockholders' Equity (Details 4) - Warrants [Member] - $ / shares
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Summary of fair value of options and warrants granted using black-scholes option-pricing model with weighted-average assumptions    
Expected dividend yield
Minimum [Member]    
Summary of fair value of options and warrants granted using black-scholes option-pricing model with weighted-average assumptions    
Expected volatility 191.00% 125.00%
Risk free interest rate 2.44% 1.31%
Expected option term (in years) 3 years 10 months 25 days
Weighted average grant date fair value $ 0.21 $ 0.12
Maximum [Member]    
Summary of fair value of options and warrants granted using black-scholes option-pricing model with weighted-average assumptions    
Expected volatility 196.00% 214.00%
Risk free interest rate 2.58% 2.57%
Expected option term (in years) 5 years 8 years 1 month 6 days
Weighted average grant date fair value $ 0.22 $ 0.45