| Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended | |
|---|---|---|
| Dec. 31, 2019 | Dec. 31, 2018 | |
| Deferred Tax Assets, Valuation Allowance | $ 24,864 | $ 13,339 | 
| Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 
| Research Tax Credit Carryforward [Member] | ||
| Tax Credit Carryforward, Amount | $ 2,600 | |
| Domestic Tax Authority [Member] | ||
| Operating Loss Carryforwards | $ 60,300 | |
| Operating Loss Carry forward, Expire Period | 2035 | |
| State and Local Jurisdiction [Member] | ||
| Operating Loss Carryforwards | $ 111,900 | |
| Operating Loss Carry forward, Expire Period | 2035 | |
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- Definition Represents expiration period of operating loss carry forward . No definition available. 
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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