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Long-Term Debt (Tables) | 9 Months Ended
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Sep. 30, 2019
Debt Disclosure [Abstract] |
Aggregate Future Principal, Final Payment Fees and Discounts of Long-Term Debt | Aggregate future principal, final payment fees and discounts of the Company’s long-term debt as of September 30, 2019, are as follows (in thousands):
Three months ending December 31, 2019 | $ | 1,146 |
Year ending December 31, 2020 |  | 6,086 |
Year ending December 31, 2021 |  | 8,576 |
Year ending December 31, 2022 |  | 21,950 |
Thereafter |  | - |
Total payments |  | 37,758 |
Less: interest, final payment fees, discount and issuance cost |  | (5,079 | )
Total payments, net of interest, final payment fees, discount and issuance cost |  | 32,679 |
Less: current portion of long-term debt |  | (3,981 | )
Long-term debt | $ | 28,698 |
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 income (loss) relates to the following debt instruments (in thousands):
| Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
| 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
SVB loans | $ | 314 |  |  | $ | 35 |  |  | $ | 791 |  |  | $ | 47 |
Novartis note |  | 168 |  |  |  | 171 |  |  |  | 540 |  |  |  | 453 |
Other |  | 2 |  |  |  | 3 |  |  |  | 5 |  |  |  | 57 |
Total interest expense | $ | 484 |  |  | $ | 209 |  |  | $ | 1,336 |  |  | $ | 557 |

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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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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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