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Income Taxes - Schedule of Deferred Tax Assets And Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Components of Deferred Tax Assets and Liabilities [Abstract] |  |  |
Net operating losses | $ 40,914 | $ 38,671 | $ 33,392
Stock-based compensation | 2,950 | 2,724 | 2,531
Financing lease obligations | 0 | 3,820 | 4,574
Operating lease ROU liabilities | 2,921 | 0 |
Tax credit carry forwards | 3,685 | 3,210 | 2,577
Capitalized R&D | 2,183 | 0 |
Compensation | 14 | 514 | 339
Derivative liability | 0 | 0 | 703
Other | 124 | 143 | 391
Gross deferred tax assets | 52,791 | 49,082 | 44,507
Less valuation allowance | (49,843) | (45,369) | (39,898)
Net deferred tax assets | 2,948 | 3,713 | 4,609
Fixed assets | (89) | (3,667) | (4,609)
Other | 0 | 46 | 0
Operating lease ROU assets | (2,859) | 0 |
Gross deferred tax liabilities | (2,948) | (3,713) | (4,609)
Net deferred tax asset or liability | $ 0 | $ 0 | $ 0

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