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Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Components of Deferred Tax Assets [Abstract] |  |
Net operating loss and tax credit carryforwards | $ 34,773 | $ 37,899
Stock-based compensation | 485 | 648
Investment in affiliates | 1,335 | 1,192
Right of use lease liability | 1,935 | 2,057
Bonus accrual | 917 | 0
Depreciation and amortization | 0 | 37
Goodwill amortization | 362 | 0
Other | 0 | 9
Valuation allowance | (26,599) | (39,708)
Total deferred tax assets | 13,208 | 2,134
Components of Deferred Tax Liabilities [Abstract] |  |
Right of use lease asset | (1,904) | (2,052)
Depreciation and amortization | (4) | 0
Goodwill amortization | 0 | (103)
Total deferred tax liabilities | (1,908) | (2,155)
Deferred Income Tax Assets, Net | $ 11,300 | 0
Deferred Tax Liabilities, Net |  | $ (21)

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