Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Fair Value Hierarchies (Details)

v3.21.1
Fair Value Measurements - Fair Value Hierarchies (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Liabilities    
Warrant liabilities $ 5,501 $ 6,037
Recurring    
Liabilities    
Warrant liabilities 5,501 6,037
Level 1 | Recurring    
Liabilities    
Warrant liabilities 0 0
Level 2 | Recurring    
Liabilities    
Warrant liabilities 0 0
Level 3 | Recurring    
Liabilities    
Warrant liabilities $ 5,501 $ 6,037