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Debt - Equipment Loan Agreements (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Total debt $ 3,994 $ 28,086
Equipment Loan Agreements    
Debt Instrument [Line Items]    
Total debt $ 578 $ 438
Maximum | Equipment Loan Agreements    
Debt Instrument [Line Items]    
Repayment period 36 months  
Debt instrument, interest rate 10.10%  
Minimum | Equipment Loan Agreements    
Debt Instrument [Line Items]    
Debt instrument, interest rate 5.80%