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Long-Term Debt and Other Financings (Tables) | 6 Months Ended
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Jun. 30, 2021
Long-Term Debt and Other Financings |
Interest Expense and Amortization of Debt Issuance Costs and Discounts | Amortization of debt issuance costs and discounts are included in interest expense. Interest expense in the condensed consolidated statements of operations and comprehensive loss relates to the following debt instruments (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | ​ | June 30, | ​
​ |  | 2021 |  | 2020 |  |  | 2021 |  | 2020 |
SVB loan | ​ | $ | 135 | ​ | $ | 356 | ​ | ​ | $ | 373 | ​ | $ | 739 | ​
Novartis note | ​ |  | 37 | ​ |  | 151 |  | ​ |  | 88 | ​ |  | 309 |
Other | ​ |  | — | ​ |  | 1 |  | ​ |  | — | ​ |  | 2 |
Total interest expense | ​ | $ | 172 | ​ | $ | 508 | ​ | ​ | $ | 461 | ​ | $ | 1,050 | ​

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- Definition Tabular disclosure of aggregate amount of interest expense and the amortization of debt issuance costs and discounts on all borrowings. + References No definition available. + Details
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