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Income Taxes - Summary of Significant Components of Deferred Tax Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets:    
Net operating loss and capital loss carryforwards $ 20,815 $ 10,586
Research and development credit carryforwards 2,359 1,196
Accrued expenses 1,377 400
Stock-based compensation 876 171
Total deferred tax assets 25,427 12,353
Deferred tax liabilities—depreciation (80) (206)
Less valuation allowance $ (25,347) $ (12,147)