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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2025
Income Tax Disclosure [Abstract] |
Schedule of Effective Income Tax Rate Reconciliation | For the years ended December 31, 2025 and 2024, income tax provision (benefit) related to continuing operations differ from the amounts computed by applying the statutory income tax rate of 21% to pre-tax loss as follows (in thousands):
|  | Year Ended December 31, |
|  | 2025 |  |  | 2024 |
U.S. federal provision (benefit) |  |  |  |  |  |  |  |  |  |
At statutory rate |  | $ | (5,514 | ) |  | 21.0 | % |  | $ | (8,786 | ) |  | 21.0 | %
Change in valuation allowance |  |  | 5,105 |  |  | -19.4 | % |  |  | 9,199 |  |  | -22.0 | %
Nontaxable or Nondeductible Items |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  | 343 |  |  | -1.3 | % |  |  | 709 |  |  | -1.7 | %
Transaction costs |  |  | 454 |  |  | -1.7 | % |  |  | — |  |  | 0.0 | %
Nontaxable or nondeductible items |  |  | 90 |  |  | -0.4 | % |  |  | 14 |  |  | 0.0 | %
Tax credits |  |  |  |  |  |  |  |  |  |
Research and development credit |  |  | (478 | ) |  | 1.8 | % |  |  | (1,136 | ) |  | 2.7 | %
Total |  | $ | — |  |  | 0.0 | % |  | $ | — |  |  | 0.0 | %
Schedule of Deferred Tax Assets and Liabilities | Significant components of the Company’s deferred tax assets at December 31, 2025 and 2024 are shown below.
|  | 2025 |  |  | 2024 |
Deferred tax assets: |  |  |  |  |  |
Net operating losses |  | $ | 152,074 |  |  | $ | 143,896 |
Research and development tax credits |  |  | 21,198 |  |  |  | 20,513 |
Amortization |  |  | 489 |  |  |  | 603 |
Lease liability |  |  | 2,354 |  |  |  | 2,625 |
Stock based compensation |  |  | 1,583 |  |  |  | 1,167 |
Other |  |  | 98 |  |  |  | 491 |
Capitalized R&D |  |  | 7,901 |  |  |  | 10,041 |
Total gross deferred tax assets |  |  | 185,697 |  |  |  | 179,336 |
Less: valuation allowance |  |  | (183,498 | ) |  |  | (176,799 | )
Total deferred tax assets |  |  | 2,199 |  |  |  | 2,537 |
Deferred tax liability: |  |  |  |  |  |
Right-of-use assets |  |  | (2,180 | ) |  |  | (2,518 | )
Fixed assets |  |  | (19 | ) |  |  | (19 | )
Total gross deferred tax liabilities |  |  | (2,199 | ) |  |  | (2,537 | )
Net deferred tax assets |  | $ | — |  |  | $ | — |
Schedule of Reconciliation of the Total Change in the Valuation Allowance | The following table presents a reconciliation of the total change in the valuation allowance (in thousands):
|  | Year Ended December 31, |
|  | 2025 |  |  | 2024 |
Beginning Balance |  |  | 176,799 |  |  |  | 164,643 |
Change related to continuing operations |  |  | 6,699 |  |  |  | 12,156 |
Ending Balance |  | $ | 183,498 |  |  | $ | 176,799 |
Schedule of Unrecognized Tax Benefits Roll Forward | The Company has the following activity relating to unrecognized tax benefits as of December 31, 2025 and 2024:
|  | 2025 |  |  | 2024 |
Beginning balance |  | $ | 5,239 |  |  | $ | 4,923 |
Gross increase - tax position in current period |  |  | 167 |  |  |  | 316 |
Ending balance |  | $ | 5,406 |  |  | $ | 5,239 |

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