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Income Taxes - Summary of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 45,231 | $ 27,511
Stock compensation | 1,587 | 748
Research and development credits | 4,593 | 2,414
Accruals and reserves | 1,033 | 830
Operating lease liabilities | 3,175 |
Total deferred tax assets | 55,619 | 31,503
Valuation allowance | (52,728) | (31,458)
Deferred tax assets recognized | 2,891 | 45
Deferred tax liabilities: |  |
Right-of-use assets | (2,854) |
Fixed assets and depreciation | (37) | (45)
Total deferred tax liabilities | $ (2,891) | $ (45)

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