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The Company and Summary of Significant Accounting Policies - Basis of Presentation and Liquidity (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Cash and cash equivalents |  |
Cash and cash equivalents | $ 20,389 | $ 11,124
Stockholders' equity: |  |
Accumulated deficit | 215,957 | 193,192
Stockholders' equity (deficit) | $ 26,897 | $ 15,781
Substantial Doubt about Going Concern, within One Year | true |

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