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Note 2 - Summary of significant accounting policies: Income taxes (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Details |  |  |
Income Tax Examination, Description | with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded. |  |
Unrecognized Tax Benefits | $ 240,930 | $ 247,697 |
Interest Payable, Current | 78,894 | 0 | $ 0
Income Tax Examination, Penalties and Interest Accrued | $ 0 | $ 0 | $ 0

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- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15 + Details
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