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Note 13 - Intangible Assets - Goodwill (Details) - USD ($)
12 Months Ended
Sep. 30, 2023
Sep. 30, 2021
Balance - beginning of year $ 8,061,002 $ 8,519,998
Effect of foreign currency translation on goodwill (209,536) (458,996)
Balance - end of year $ 7,851,466 $ 8,061,002