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Note 6 - Intangible Assets (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Amortization $ 1,955,402 $ 1,975,174 $ 5,821,409 $ 5,746,002