Long-term Debt and Warrant Liability - Summary of Assumptions to Determine Fair Value of Warrant (Details)	Sep. 30, 2020 $ / shares
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Stock price	$ 2.26
Exercise price	$ 1.05
Expected term (in years)	9 years 9 months
Volatility
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.75
Risk-free Interest Rate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Measurement input	0.0069