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Note 7 - Intangible Assets (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Amortization of Intangible Assets $ 6,621 $ 6,622 $ 19,866 $ 19,841
Impairment of Intangible Assets (Excluding Goodwill)     $ 0 $ 0