Long-Term Debt - Interest Debt Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Debt Disclosure [Abstract] | ||||
| Contractual interest expense | $ 63 | $ 106 | $ 228 | $ 343 |
| Amortization of debt issuance costs | 4 | 7 | 16 | 25 |
| Accretion of final payment | 11 | 19 | 40 | 64 |
| Amortization of initial success fee | 5 | 9 | 19 | 30 |
| Total | $ 83 | $ 141 | $ 303 | $ 462 |
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- Definition Amortization Of Success Fee Expense No definition available.
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- Definition Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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