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Prepaid Expenses and Other Current Assets | 6 Months Ended
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Jun. 30, 2026
Prepaid Expense and Other Assets, Current [Abstract] |
Prepaid Expenses and Other Current Assets | 8. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following as of (in thousands):
|  | June 30, 2026 |  |  | December 31, 2025 |
Amounts due under Asset Purchase Agreement |  | $ | 1,837 |  |  | $ | 4,837 |
Payroll tax credit |  |  | 555 |  |  |  | 555 |
Prepaid expenses |  |  | 757 |  |  |  | 813 |
Prepaid external research and development |  |  | 118 |  |  |  | 528 |
Deferred transaction costs |  |  | 90 |  |  |  | — |
Other |  |  | 19 |  |  |  | 20 |
Total prepaid expenses and other current assets |  | $ | 3,376 |  |  | $ | 6,753 |

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