Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Interest Expense and Amortization of Debt Issuance Costs (Details)

v3.19.3
Long-Term Debt - Interest Expense and Amortization of Debt Issuance Costs (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Interest expense and amortization of debt issuance costs [Abstract]        
Interest expense $ 484 $ 209 $ 1,336 $ 557
SVB Loans [Member]        
Interest expense and amortization of debt issuance costs [Abstract]        
Interest expense 314 35 791 47
Novartis Note [Member]        
Interest expense and amortization of debt issuance costs [Abstract]        
Interest expense 168 171 540 453
Other [Member]        
Interest expense and amortization of debt issuance costs [Abstract]        
Interest expense $ 2 $ 3 $ 5 $ 57