Quarterly report pursuant to Section 13 or 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
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Interest expense        
Interest expense $ 434 $ 484 $ 1,484 $ 1,336
Silicon Valley Bank Loans        
Interest expense        
Interest expense 334 314 1,073 791
Novartis Note        
Interest expense        
Interest expense $ 100 168 409 540
Other        
Interest expense        
Interest expense   $ 2 $ 2 $ 5