Selected Balance Sheet Information - Schedule of Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Selected Balance Sheet Information | ||
| Prepaid insurance | $ 233 | $ 350 |
| Prepaid consulting, subscriptions and other expenses | 217 | 213 |
| VAT receivable | 107 | 32 |
| Prepaid clinical research organizations | 63 | |
| Stock sales receivable | 452 | |
| Other receivable | $ 21 | |
| Other Receivable, after Allowance for Credit Loss, Current, Related Party [Extensible Enumeration] | us-gaap:NonrelatedPartyMember | |
| Prepaid manufacturing expenses | $ 12 | 13 |
| Total prepaid expenses and other current assets | $ 653 | $ 1,060 |
| X | ||||||||||
- References No definition available.
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- Definition Sum of the amount paid in advance for clinical research organization. No definition available.
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- Definition Sum of the amount paid in advance for consulting, subscriptions and other expenses. No definition available.
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- Definition Amount of Prepaid Manufacturing Expense. No definition available.
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- Definition Carrying amount as of the balance sheet date of receivables due on at-the-market stock sales that have not cash settled prior to period end. No definition available.
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| X | ||||||||||
- Definition Indicates status and type of related party for receivable, after allowance for credit loss, classified as other and current. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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