Income Taxes - Additional Information (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | |
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Sep. 30, 2020 |
Sep. 30, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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Income Tax Disclosure [Abstract] | ||||
Unrecognized tax benefits | $ 2,500,000 | $ 2,500,000 | $ 2,500,000 | |
Changes in unrecognized tax benefits | $ 0 | |||
Effective income tax rate from continuing operations | 0.00% | |||
Federal statutory income tax rate | 21.00% | |||
Operating loss carryforwards state | 205,200,000 | |||
Operating loss carryforwards federal | 128,200,000 | |||
Federal and state net operating loss carryforwards, expiring year | 2039 | |||
State research and development tax credit carryforwards | $ 3,200,000 | |||
Cumulative change in ownership percentage | 50.00% | |||
Period for cumulative change in ownership | 3 years |
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- Definition Cumulative change in ownership percentage. No definition available.
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- Definition Deferred Tax Assets Operating Loss Carryforwards Expiration Year No definition available.
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- Definition Deferred Tax Assets Tax Credit Carryforwards Research State No definition available.
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- Definition Period for cumulative change in ownership. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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