| Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands | 12 Months Ended | |
|---|---|---|
| Dec. 31, 2018 | Dec. 31, 2017 | |
| Income Tax Disclosure [Abstract] | ||
| Unrecognized tax benefits beggining balance | $ 1,117 | $ 1,117 | 
| Additions for tax positions related to the current year | ||
| Additions for tax positions of prior years | ||
| Reductions for tax positions of prior years | (323) | |
| Unrecognized tax benefits ending balance | $ 794 | $ 1,117 | 
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- References No definition available. 
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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