Income Taxes - Tax credit carryforward (Details) $ in Millions |
12 Months Ended |
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Dec. 31, 2020
USD ($)
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| Operating Loss Carryforwards | |
| Operating loss carryforward offset (as a percent) | 80.00% |
| Federal Orphan Credit | |
| Operating Loss Carryforwards | |
| Tax credit carry forward amount | $ 2.3 |
| Tax credit carry forward expiration year | 2037 |
| California | Research and Development Credit | |
| Operating Loss Carryforwards | |
| Tax credit carry forward amount | $ 19.8 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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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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- Definition Operating loss carryforwards offset of taxable income percentage. No definition available.
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- Definition Tax credit carry forward expiration year No definition available.
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