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Loans Payable - Components (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Loans payable, net, current $ 984 $ 1,863
Total loans payable, net, non-current 31,413 31,168
TPC Government Loans | Other notes payable    
Debt Instrument [Line Items]    
Loans payable, net, current 399 399
Total loans payable, net, non-current $ 737 734
Directors and Officers Insurance financing | Other notes payable    
Debt Instrument [Line Items]    
Interest rate 4.24%  
Loans payable, net, current $ 585 1,449
Other Loans | Other notes payable    
Debt Instrument [Line Items]    
Loans payable, net, current 0 15
SIF Loan | Other notes payable    
Debt Instrument [Line Items]    
Total loans payable, net, non-current $ 30,676 $ 30,434