Note 2 - Summary of Significant Accounting Policies - Fair Value Liabilities Measured on Recurring Basis (Details) - Warrant Liability [Member] - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Warrants liabilities | $ 0 | $ 109 |
| Change in fair value of warrants | 0 | (90) |
| Warrants liabilities | $ 0 | $ 19 |
| X | ||||||||||
- Definition Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
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