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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance | $ 143,888,000 | $ 141,628,000
Valuation allowance increase (decrease) | 2,300,000 | (7,900,000)
Income tax estimated dividend withholding tax | 400,000 |
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
Estimated taxable loss | 1,238,000 | $ (14,369,000)
Taxable loss related to legislation change | 12,400,000 |
Domestic Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 374,000,000.0 |
Operating loss carryforwards, not subject to expiration | 119,600,000 |
Research and development tax credit carryforwards | 11,700,000 |
California Franchise Tax Board |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 64,800,000 |
Research and development tax credit carryforwards | 11,900,000 |
Foreign Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | $ 0 |

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