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v3.25.0.1

Income Taxes - Reconciliation of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Deferred tax assets: |  |  |
Net operating loss carryforwards | $ 35,348 | $ 32,479 |
Research and development tax credits | 2,360 | 2,353 |
Accruals, reserves and other | 955 | 1,119 |
Interest expense | 2,785 | 2,547 |
Indefinite lived assets | 276 | 300 |
Stock compensation | 598 | 1,391 |
Lease liability | 681 | 925 |
Capitalization of research and experimentation costs | 2,942 | 2,929 |
Total gross deferred tax assets | 45,945 | 44,043 |
Less: valuation allowance | (45,237) | (42,942) | $ (38,567)
Deferred tax assets, net | 708 | 1,101 |
Deferred tax liabilities: |  |  |
Right of use assets | (592) | (814) |
Basis differences in fixed and intangible assets | (116) | (287) |
Deferred tax liabilities | (708) | (1,101) |
Net deferred tax assets | $ 0 | $ 0 |

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