Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Financial Instruments Measured at Fair Value (Details)

v3.21.1
Summary of Significant Accounting Policies - Financial Instruments Measured at Fair Value (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Jul. 15, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability $ 1,614 $ 2,486 $ 0
Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 1,614    
Total 1,614    
Level 1 | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0    
Total 0    
Level 2 | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 1,614    
Total 1,614    
Level 3 | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0    
Total $ 0