Income Taxes - Net Operating Loss Carryforwards (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Income Taxes | |||
| Net operating loss carryforwards | $ 108,800,000 | ||
| Change in valuation allowance | 10,800,000 | $ 5,100,000 | $ 4,500,000 |
| Impact of Tax Reform | 14,500,000 | ||
| Offset net operating loss | 3,700,000 | ||
| Income tax (expense) benefit | $ 0 | $ 0 | |
| X | ||||||||||
- Definition Amount of net operating loss that was offset against the remeasurment impact of the Tax Cuts and Jobs Act of 2017. No definition available.
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| X | ||||||||||
- Definition Amount of reasonable estimate for income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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