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Legal Proceedings, Commitments and Contingencies - Narrative (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
case
Dec. 31, 2020
USD ($)
Feb. 22, 2022
USD ($)
Jun. 05, 2020
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Loss contingency, claims settled, number | case 3      
Operating lease liability, current $ 198 $ 166    
Operating lease liability, non-current 610 825    
Operating lease right-of-use asset 723 896    
Non-cash lease expense $ 173 95    
Subsequent Event        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Additional rental payments to be made annually     $ 200  
Office Space Lease Expiring December 31, 2024        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Operating lease liability, current       $ 100
Operating lease liability, non-current       900
Operating lease right-of-use asset       $ 1,000
Operating lease, discount rate 13.00%      
Operating lease, remaining term 3 years      
Non-cash lease expense $ 300 400    
Operating lease, cash payments $ 300 $ 300