Annual report pursuant to Section 13 and 15(d)

Long-Term Debt and Other Financings - Interest Expense (Details)

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Long-Term Debt and Other Financings - Interest Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Interest expense    
Interest expense $ 461 $ 1,844
SVB Loan    
Interest expense    
Interest expense 373 1,365
Novartis Note    
Interest expense    
Interest expense $ 88 477
Other    
Interest expense    
Interest expense   $ 2