Income Taxes - Schedule of Research and Development Credit Carryforwards (Details) - USD ($) $ in Thousands |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Federal | ||
| Income Tax Disclosure [Line Items] | ||
| R&D credits | $ 0 | $ 632 |
| California | ||
| Income Tax Disclosure [Line Items] | ||
| R&D credits | $ 117 | $ 117 |
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- Definition Income tax disclosure. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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