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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance | $ 141,628,000 | $ 149,529,000
Valuation allowance (decrease) increase | (7,900,000) | 9,300,000
Income tax estimated dividend withholding tax | 900,000 |
Income tax benefit recognized related to uncertain tax positions | 0 | 0
Interest expense related to uncertain tax positions | 0 | 0
Liability related to unrecognized tax benefits | 0 | $ 0
Domestic Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 355,400,000 |
Operating loss carryforwards, not subject to expiration | 107,200,000 |
Research and development tax credit carryforwards | 11,400,000 |
California Franchise Tax Board |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 64,400,000 |
Research and development tax credit carryforwards | 11,400,000 |
Foreign Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | $ 0 |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15 + Details
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