Quarterly report pursuant to Section 13 or 15(d)

Warrants and Derivative Liabilities (Details 4)

v3.20.1
Warrants and Derivative Liabilities (Details 4) - Monte Carlo simulations - Emerald Financing
Mar. 31, 2020
Percent
$ / shares
Dec. 31, 2019
Percent
$ / shares
Class of Warrant or Right [Line Items]    
Underlying common stock price | $ / shares $ 0.08 $ 0.13
Dividend yield    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0 0
Volatility factor    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 81.4 79.5
Risk-free interest rate    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0.28 1.62
Expected term (years)    
Class of Warrant or Right [Line Items]    
Expected Term 2 years 10 months 17 days 3 years 1 month 17 days