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v3.23.1

Income Taxes - Reconciliation of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Deferred tax assets: |  |  |
Net operating loss carryforwards | $ 29,789 | $ 22,365 |
Research and development tax credits | 2,216 | 1,102 |
Accruals, reserves and other | 349 | 1,055 |
Interest expense | 2,236 | 1,953 |
Indefinite lived assets | 362 | 0 |
Stock compensation | 1,606 | 1,407 |
Lease liability | 1,374 | 0 |
Capitalization of research and experimentation costs | 2,047 | 0 |
Total gross deferred tax assets | 39,979 | 27,882 |
Less: valuation allowance | (38,567) | (27,158) | $ (20,596)
Deferred tax assets, net | 1,412 | 724 |
Deferred tax liabilities: |  |  |
Financing and acquisition-related liabilities | 0 | (335) |
Indefinite lived assets | 0 | (521) |
Right of use assets | (1,206) | 0 |
Basis differences in fixed and intangible assets | (206) | (175) |
Deferred tax liabilities, net | (1,412) | (1,031) |
Net deferred tax liabilities | $ 0 | $ (307) |

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