Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Schedule of Assumptions Used in Estimating Fair Value (Details)

v3.21.1
Fair Value Measurements - Schedule of Assumptions Used in Estimating Fair Value (Details) - Common Stock Warrants [Member] - Black-Scholes-Merton Valuation Model [Member]
Mar. 31, 2021
Dec. 31, 2020
Weighted-Average Risk-Free Interest Rate [Member] | Minimum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value assumptions, measurement input, percentages 0.05 0.09
Weighted-Average Risk-Free Interest Rate [Member] | Maximum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value assumptions, measurement input, percentages 0.70 0.27
Weighted-Average Expected Life (in years) [Member] | Minimum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value assumptions, measurement input, term 4 months 17 days 7 months 17 days
Weighted-Average Expected Life (in years) [Member] | Maximum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value assumptions, measurement input, term 4 years 26 days 4 years 1 month 6 days
Expected Dividend Yield [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value assumptions, measurement input, percentages 0.00 0.00
Weighted Average Expected Volatility [Member] | Minimum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value assumptions, measurement input, percentages 137.8 138.3
Weighted Average Expected Volatility [Member] | Maximum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value assumptions, measurement input, percentages 178.1 175.6