Note 9 - Warrants - Summary of Warrant Activity (Details) - $ / shares |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2026 |
Dec. 31, 2025 |
|
| Class of Warrant or Right [Line Items] | ||
| Weighted average exercise price, Forfeited/expired | $ 1,234.41 | |
| Warrant [Member] | ||
| Class of Warrant or Right [Line Items] | ||
| Common shares issuable upon exercise, Beginning | 1,267,585 | |
| Common shares issuable upon exercise, Forfeited/expired | (128,500) | |
| Common shares issuable upon exercise, Ending | 1,139,085 | 1,267,585 |
| Common Shares Issuable upon Exercise, Exercisable | 1,139,085 | |
| Weighted average exercise price, Beginning | $ 22.4 | |
| Weighted average exercise price, Forfeited/expired | 34.5 | |
| Weighted average exercise price, Ending | 21.04 | $ 22.4 |
| Weighted average exercise price, Exercisable | $ 21.04 | |
| Weighted average remaining contractual life (years) | 3 years 4 months 24 days | 3 years 3 months 18 days |
| X | ||||||||||
- Definition Share based compensation arrangement by share based payment award non option equity instruments exercisable number. No definition available.
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| X | ||||||||||
- Definition Share based compensation arrangement by share based payment award non option equity instruments exercisable weighted average remaining contractual life. No definition available.
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| X | ||||||||||
- Definition Share based compensation arrangement by share based paymet award non option outstanding weighted average exercise price. No definition available.
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| X | ||||||||||
- Definition Share based compensation arrangement by share based paymet award weighted average exercise price exercisable. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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