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Note 1 - Nature of Activities and Summary of Significant Accounting Policies - Schedule of Dilutive Securities (Details) (Parentheticals) - $ / shares | Dec. 31, 2024 | Dec. 31, 2023
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Debt with Conversion Feature [Member] |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ 30 | $ 30

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- Details
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