Quarterly report pursuant to Section 13 or 15(d)

Warrants and Derivative Liabilities (Details 4)

v3.20.2
Warrants and Derivative Liabilities (Details 4) - Pricing Model - Series B warrant
Jun. 30, 2020
Percent
$ / shares
Dec. 31, 2019
Percent
$ / shares
Class of Warrant or Right [Line Items]    
Underlying common stock price | $ / shares $ 0.16 $ 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 104.9 79.2
Risk-free interest rate    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0.16 1.60
Expected term (years)    
Class of Warrant or Right [Line Items]    
Expected Term 1 month 20 days 7 months 20 days