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Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred tax assets: |  |
Tax loss carryforwards | $ 20,289 | $ 17,506
Research and development credits and other tax credits | 2,743 | 2,226
Stock-based compensation | 1,317 | 962
Capitalized research and development | 4,794 | 0
Other | 1,431 | 1,750
Total deferred tax assets | 30,574 | 22,444
Deferred tax liabilities: |  |
Operating lease right-of-use assets | (492) | (611)
Other | 0 | 0
Total deferred tax liabilities | (492) | (611)
Net deferred tax assets before valuation allowance | 30,082 | 21,833
Valuation allowance | (30,082) | (21,833)
Net deferred tax asset | $ 0 | $ 0

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