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Loans and Convertible Notes Payable - Summary of Avenue Warrant Valued Using the Black-Scholes Option Pricing Method (Details)
3 Months Ended 9 Months Ended
Aug. 06, 2021
Sep. 30, 2021
Sep. 30, 2021
Equity Method Investments And Cost Method Investments [Abstract]      
Contractual term (years) 5 years 25 days    
Expected volatility 187.00%    
Risk-free interest rate 0.77%    
Expected dividends 0.00% 0.00% 0.00%