Accounts payable, accrued expenses, and other liabilities (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Other Liabilities Disclosure [Abstract] | ||
| Accounts payable and accrued expenses | $ 2,168 | $ 4,415 |
| Other liabilities, current: | ||
| Accrued compensation | 2,812 | 3,227 |
| Operating lease liability | 23 | 31 |
| Accrued directors fees | 0 | 39 |
| Total | $ 5,003 | $ 7,712 |
| Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Total | Total |
| Other liabilities, non-current: | ||
| Operating lease liability | $ 0 | $ 8 |
| Total | $ 0 | $ 8 |
| Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Total | Total |
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- Definition Accrued Director Fees, Current No definition available.
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- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Indicates line item in statement of financial position that includes current operating lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of financial position that includes noncurrent operating lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- References No definition available.
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- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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