Quarterly report pursuant to Section 13 or 15(d)

Warrants and Derivative Liabilities - Schedule of Input and Valuation Techniques Used to Value Warrant Liabilities (Details)

v3.22.2.2
Warrants and Derivative Liabilities - Schedule of Input and Valuation Techniques Used to Value Warrant Liabilities (Details)
Jun. 30, 2022
$ / shares
Apr. 01, 2022
$ / shares
Dec. 31, 2021
$ / shares
2018 Emerald Financing Warrants      
Class of Warrant or Right [Line Items]      
Underlying common stock price (in dollars per share) $ 0.04   $ 0.05
Dividend yield | 2022 Common Stock Warrants to Service Provider      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input   0  
Dividend yield | 2018 Emerald Financing Warrants      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input 0   0
Volatility factor | 2022 Common Stock Warrants to Service Provider      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input   1.185  
Volatility factor | 2018 Emerald Financing Warrants      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input 0.990   1.265
Risk-free interest rate | 2022 Common Stock Warrants to Service Provider      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input   0.0192  
Risk-free interest rate | 2018 Emerald Financing Warrants      
Class of Warrant or Right [Line Items]      
Warrants and rights outstanding measurement input 0.0259   0.0043
Expected term (years) | 2022 Common Stock Warrants to Service Provider      
Class of Warrant or Right [Line Items]      
Expected term (years)   1 year 3 months 7 days  
Expected term (years) | 2018 Emerald Financing Warrants      
Class of Warrant or Right [Line Items]      
Expected term (years) 7 months 17 days   1 year 1 month 17 days
Underlying common stock price | 2022 Common Stock Warrants to Service Provider      
Class of Warrant or Right [Line Items]      
Underlying common stock price (in dollars per share)   $ 0.04