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Income Taxes - Schedule of net deferred tax assets (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Components of Deferred Tax Assets [Abstract] |  |
Net operating loss carryforwards | $ 47,448 | $ 35,486
Accrued expenses and other current liabilities | 1,666 | 1,212
Charitable contributions | 22 | 8
Depreciation and amortization | 930 | 756
Stock-based compensation | 233 | 0
Operating lease liabilities | 2,136 | 1,848
Capitalized research and development expense | 12,920 | 8,659
Tenant improvement allowance | 0 | 4
Section 195 capitalization | 369 | 418
Research and development credits | 12,076 | 8,764
Total deferred tax assets | 77,800 | 57,155
Less: valuation allowance | (75,737) | (55,372)
Total deferred tax assets, net of valuation allowance | 2,063 | 1,783
Components of Deferred Tax Liabilities [Abstract] |  |
Operating lease right-of-use assets | (2,064) | (1,784)
Other | 1 | 1
Total deferred tax liabilities | (2,063) | (1,783)
Net deferred tax assets | $ 0 | $ 0

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