Quarterly report pursuant to Section 13 or 15(d)

Warrants and Derivative Liabilities (Details 5)

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Warrants and Derivative Liabilities (Details 5) - Pricing Model - Series B warrant
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 79.8 79.2
Risk-free interest rate    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0.13 1.60
Expected term (years)    
Class of Warrant or Right [Line Items]    
Expected Term 4 months 20 days 7 months 20 days