v3.25.0.1

Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Components of Deferred Tax Assets and Liabilities [Abstract] |  |
Start-up costs | $ 1,096 | $ 1,137
Capitalized research and development costs | 170 | 272
Reserves and accruals | 751 | 1,157
Property and equipment | 56 |
Intangible assets | 4,420 | 4,597
Research and development credit | 2,492 | 2,492
Lease liability | 70 | 43
Net operating loss carryforwards | 67,930 | 63,424
State and local taxes | 2 | 2
Total gross deferred tax assets | 76,987 | 73,124
Valuation allowance | (76,895) | (72,945)
Deferred tax assets, net of valuation allowance | 92 | 179
Property and equipment |  | (80)
Operating lease right-of-use assets | (64) | (43)
Total gross deferred tax liabilities | (64) | (123)
Deferred income taxes, net | $ 28 | $ 56

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