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Income Taxes - Schedule of Deferred Taxes (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets: |  |
Federal net operating loss carryforwards | $ 13,412 | $ 19,135
State net operating loss carryforwards | 3,500 | 5,401
Contingent liability | 14,876 | 0
Accruals and Reserves | 818 | 659
Capitalized intangible assets | 2,828 | 3,089
Tax credit carryforwards | 5,762 | 4,745
Capitalized R&D expenditures | 13,546 | 7,378
Lease liability | 1,835 | 1,962
Stock compensation and other | 544 | 318
Total gross deferred tax assets before valuation allowance | 57,121 | 42,687
Less: Valuation allowance | (55,078) | (40,342)
Net deferred tax assets | 2,043 | 2,345
Deferred tax liabilities: |  |
Fixed assets | (339) | (483)
Right of use asset | (1,704) | (1,862)
Net deferred tax assets | $ 0 | $ 0

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