Note 4 - Fair Value Measurements and Other Liabilities - Schedule of Liabilities Under Fair Value Option (Details) - USD ($) |
Mar. 31, 2026 |
Dec. 31, 2025 |
Mar. 31, 2025 |
Feb. 04, 2025 |
|---|---|---|---|---|
| Token Rights | $ 5,345,712 | $ 5,345,712 | ||
| Warrants and Rights Outstanding | $ 0 | $ 81,360,000 | 100,800,000 | |
| Convertible Note 2025 [Member] | ||||
| Convertible Note 2026 | 5,818,000 | 15,295,000 | 33,000,000 | |
| Convertible Note 2026, contractual principal outstanding | 5,500,000 | 5,500,000 | 5,500,000 | |
| Convertible Note 2025 fair value | 5,818,000 | 15,295,000 | 33,000,000 | |
| Convertible Note 2025, contractual principal outstanding | $ 5,500,000 | $ 5,500,000 | 5,500,000 | |
| Convertible Note 2026 [Member] | ||||
| Convertible Note 2026 | 14,573,000 | 15,056,000 | ||
| Convertible Note 2026, contractual principal outstanding | 11,000,000 | 11,000,000 | ||
| Convertible Note 2025 fair value | 14,573,000 | 15,056,000 | ||
| Convertible Note 2025, contractual principal outstanding | $ 11,000,000 | $ 11,000,000 |
| X | ||||||||||
- Definition Outstanding amount of token rights. No definition available.
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| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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