Quarterly report pursuant to Section 13 or 15(d)

Offerings of Common Stock and Warrants - Warrants - Valuation Assumptions (Details)

v3.21.2
Offerings of Common Stock and Warrants - Warrants - Valuation Assumptions (Details)
Sep. 30, 2021
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Fair Value Measurement Inputs and Valuation Techniques  
Warrants and Rights Outstanding, Valuation Technique us-gaap:ValuationTechniqueOptionPricingModelMember
Goldman 2020 Warrant, Purchase Warrant for Common Shares | Measurement Input, Risk Free Interest Rate  
Fair Value Measurement Inputs and Valuation Techniques  
Warrants and Rights Outstanding, Measurement Input 0.2
Goldman 2020 Warrant, Purchase Warrant for Common Shares | Measurement Input, Expected Term  
Fair Value Measurement Inputs and Valuation Techniques  
Warrants and Rights Outstanding, Measurement Input 3
Goldman 2020 Warrant, Purchase Warrant for Common Shares | Measurement Input, Price Volatility  
Fair Value Measurement Inputs and Valuation Techniques  
Warrants and Rights Outstanding, Measurement Input 0.810