Note 6 - Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Accrued expenses | $ 30 | $ 34 |
| Accrued salaries and employee benefits | 385 | 524 |
| Accrued clinical trial costs | 268 | 256 |
| Grant liability | 474 | 471 |
| Customer deposits | 64 | 64 |
| Total | $ 1,221 | $ 1,349 |
| X | ||||||||||
- Definition Amount of accrued liabilities and liabilities classified as other, due within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided and employee benefits (due within one year or within the normal operating cycle if longer). No definition available.
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| X | ||||||||||
- Definition Amount of obligations incurred for clinical trial costs, payable within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition The amount of customer deposit liabilities classified as current. No definition available.
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| X | ||||||||||
- Definition Amount of obligations incurred for grants, payable within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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