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Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred tax assets: |  |
Accrued liabilities not currently deductible | $ 434 | $ 476
Intangible assets- excess of financial statement over tax amortization | 3,341 | 5,985
Stock-based compensation | 675 | 2,405
Federal net operating and capital losses | 35,724 | 35,052
State, local and foreign net operating and capital loss carryforwards | 5,326 | 3,353
Research & experimental tax and other credit carryforwards | 5,421 | 5,184
Lease liability | 426 | 866
Capitalized research and development | 1,054 |
Other | 460 | 547
Gross deferred tax assets | 52,861 | 53,868
Valuation allowance | (51,795) | (53,066)
Net deferred tax assets | 1,066 | 802
Deferred tax liabilities: |  |
Intangible assets-excess of tax over financial statement amortization | (1,107) | (393)
Right-of-use lease asset | (192) | (595)
Net deferred tax liabilities | $ (233) | (186)
As Adjusted |  |
Deferred tax assets: |  |
Accrued liabilities not currently deductible |  | 476
Intangible assets- excess of financial statement over tax amortization |  | 3,245
Stock-based compensation |  | 442
Federal net operating and capital losses |  | 35,052
State, local and foreign net operating and capital loss carryforwards |  | 4,552
Research & experimental tax and other credit carryforwards |  | 5,685
Lease liability |  | 866
Other |  | 547
Gross deferred tax assets |  | 50,865
Valuation allowance |  | (49,643)
Net deferred tax assets |  | 1,222
Deferred tax liabilities: |  |
Intangible assets-excess of tax over financial statement amortization |  | (813)
Right-of-use lease asset |  | (595)
Net deferred tax liabilities |  | $ (186)

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