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Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred tax assets: |  |
Tax loss carryforwards | $ 27,374 | $ 23,441
Research and development credits and other tax credits | 4,556 | 3,611
Stock-based compensation | 1,252 | 1,407
Capitalized research and development | 14,209 | 9,687
Operating lease liabilities | 327 | 471
Other | 967 | 929
Total deferred tax assets | 48,685 | 39,546
Deferred tax liabilities: |  |
Operating lease right-of-use assets | (251) | (375)
Total deferred tax liabilities | (251) | (375)
Net deferred tax assets before valuation allowance | 48,434 | 39,171
Valuation allowance | (48,434) | (39,171)
Net deferred tax asset | $ 0 | $ 0

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