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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred income tax assets: |  |
Net operating loss | $ 6,391 | $ 5,355
Research and development credits | 1,338 | 1,363
Stock compensation | 121 | 114
Deferred compensation | 617 | 632
Other | 354 | 515
Total deferred income tax assets | 8,821 | 7,979
Deferred income tax liabilities: |  |
Property and equipment | (48,427) | (47,044)
Goodwill and other intangible assets | (192) | (223)
Total deferred income tax liabilities | (48,619) | (47,267)
Net deferred income tax liabilities | $ (39,798) | $ (39,288)

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