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Note 3 - Summary of Significant Accounting Policies - Translation Rates (Details) | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024
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Closing Rate [Member] |  |  |
Foreign Currency Exchange Rate, Translation | 1.37 | 1.26 | 1.26
Quarterly Average Rate [Member] |  |  |
Foreign Currency Exchange Rate, Translation | 1.34 | 1.28 | 1.26
Yearly Average Rate [Member] |  |  |
Foreign Currency Exchange Rate, Translation | 1.3 | 1.28 | 1.27

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