Accrued Expenses and Other Long-Term Liabilities - Schedule of Long Term Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Payables and Accruals [Abstract] | ||
| Warrant liability | $ 361 | $ 473 |
| Uncertain tax positions | 3,838 | 3,734 |
| Other | 120 | 82 |
| Total other long-term liabilities | $ 4,319 | $ 4,289 |
| X | ||||||||||
- Definition Warrant liability noncurrent. No definition available.
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| X | ||||||||||
- Definition Amount of obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount recognized for uncertainty in income taxes classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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