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Note 11 - Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
|  |  |  |  |  | Fair Value Measurements at |
|  |  |  |  |  | March 31, 2026 |
|  |  |  |  |  | Quoted Prices in Active Markets |  |  | Significant Other Observable Inputs |  |  | Significant Unobservable Inputs |
|  | Total |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Georges Trust derivative |  | $ | 136,114 |  |  | $ | — |  |  | $ | 136,114 |  |  | $ | — |
Total assets measured at fair value |  | $ | 136,114 |  |  | $ | — |  |  | $ | 136,114 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Marathon SAFE Note |  | $ | 12,000,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 12,000,000 |
Total liabilities measured at fair value |  | $ | 12,000,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 12,000,000 |
|  |  |  |  |  | Fair Value Measurements at |
|  |  |  |  |  | December 31, 2025 |
|  |  |  |  |  | Quoted Prices in Active Markets |  |  | Significant Other Observable Inputs |  |  | Significant Unobservable Inputs |
|  | Total |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Georges Trust derivative |  | $ | 1,201,114 |  |  | $ | — |  |  | $ | 1,201,114 |  |  | $ | — |
Alvin Fund derivative |  |  | 759,682 |  |  |  | — |  |  |  | 759,682 |  |  |  | — |
Total assets measured at fair value |  | $ | 1,960,796 |  |  | $ | — |  |  | $ | 1,960,796 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Marathon SAFE Note |  | $ | 12,000,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 12,000,000 |
Total liabilities measured at fair value |  | $ | 12,000,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 12,000,000 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] |
|  | For the Three-Months Ended March 31, 2026 |
|  | As of December 31, 2025 |  |  | (Additions) Deductions |  |  | Change in Fair Value |  |  | Proceeds Received and Payments Made for Change in Contractual Stock Consideration |  |  | As of March 31, 2026 |
Georges Trust derivative |  | $ | 1,201,114 |  |  | $ | — |  |  | $ | (1,194,000 | ) |  | $ | 129,000 |  |  | $ | 136,114 |
Alvin Fund derivative |  |  | 759,682 |  |  |  | — |  |  |  | 471,985 |  |  |  | (1,231,667 | ) |  |  | — |
Total derivative assets (liabilities) at fair value |  | $ | 1,960,796 |  |  | $ | — |  |  | $ | (722,015 | ) |  | $ | (1,102,667 | ) |  | $ | 136,114 |
|  | For the Three-Months Ended March 31, 2025 |
|  | As of December 31, 2024 |  |  | (Additions) Deductions |  |  | Change in Fair Value |  |  | Payments for Decrease in Contractual Stock Consideration |  |  | As of March 31, 2025 |
2025 Kips Bay convertible debt derivative |  | $ | — |  |  | $ | (1,421,645 | ) |  | $ | 501,645 |  |  | $ | — |  |  | $ | (920,000 | )
LINICO acquisition-related payable derivative |  |  | — |  |  |  | (340,000 | ) |  |  | 31,000 |  |  |  | — |  |  |  | (309,000 | )
AST derivative |  |  | — |  |  |  | 480,540 |  |  |  | (88,540 | ) |  |  | — |  |  |  | 392,000 |
Haywood derivative |  |  | 1,529,850 |  |  |  | — |  |  |  | (1,634,908 | ) |  |  | 120,000 |  |  |  | 14,942 |
Total derivative assets (liabilities) at fair value |  | $ | 1,529,850 |  |  | $ | (1,281,105 | ) |  | $ | (1,190,803 | ) |  | $ | 120,000 |  |  | $ | (822,058 | )
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] |
Present Value of Marathon SAFE Note | Discount Rate | Period Range
$12.0 million | 35% | 0.25 years to 0.75 years
Present Value of Marathon SAFE Note | Discount Rate | Period Range
$12.0 million | 35% | 0.25 years to 0.84 years

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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