Accrued Expenses (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Accrued Expenses (Textual) | |||
| Accrued liability | $ 6,322 | ||
| Reduction in revenue | $ 2,907 | $ 3,415 | |
| Net revenues liability | $ 6,322 | ||
| X | ||||||||||
- References No definition available.
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- Definition Amount of net revenues liability No definition available.
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- Definition Amount of reduction in revenue. No definition available.
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| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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