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Note 6 - Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Short-term investment in marketable equity securities, at fair value (asset) | $ 9,477,682 |
Derivative liabilities - Series A warrants | 55,000 | $ 50,000
Total | 9,532,682 |
Total |  | 50,000
Fair Value, Inputs, Level 1 [Member] |  |
Short-term investment in marketable equity securities, at fair value (asset) | 9,477,682 |
Derivative liabilities - Series A warrants | 0 | 0
Total | 9,477,682 |
Total |  | 0
Fair Value, Inputs, Level 2 [Member] |  |
Short-term investment in marketable equity securities, at fair value (asset) | 0 |
Derivative liabilities - Series A warrants | 0 | 0
Total | 0 |
Total |  | 0
Fair Value, Inputs, Level 3 [Member] |  |
Short-term investment in marketable equity securities, at fair value (asset) | 0 |
Derivative liabilities - Series A warrants | 55,000 | 50,000
Total | $ 55,000 |
Total |  | $ 50,000

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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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