Quarterly report pursuant to Section 13 or 15(d)

Warrants and Derivative Liabilities - Schedule of input and valuation technique used to value warrant liabilities (Details)

v3.21.2
Warrants and Derivative Liabilities - Schedule of input and valuation technique used to value warrant liabilities (Details)
Jun. 30, 2021
$ / shares
Dec. 31, 2020
$ / shares
Class of Warrant or Right [Line Items]    
Underlying common stock price (in dollars per share) $ 0.16 $ 0.04
Series B Warrant    
Class of Warrant or Right [Line Items]    
Underlying common stock price (in dollars per share) $ 0.16  
Dividend yield    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0.0000 0.0000
Dividend yield | Series B Warrant    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0.0000  
Volatility factor    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 1.453 0.909
Volatility factor | Series B Warrant    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 1.049  
Risk-free interest rate    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0.0018 0.0014
Risk-free interest rate | Series B Warrant    
Class of Warrant or Right [Line Items]    
Warrants and rights outstanding measurement input 0.0016  
Expected term (years)    
Class of Warrant or Right [Line Items]    
Expected term (years) 1 year 7 months 17 days 2 years 1 month 17 days
Expected term (years) | Series B Warrant    
Class of Warrant or Right [Line Items]    
Expected term (years) 1 month 20 days