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Note 6 - Prepaid Expenses - Prepaid Expenses (Details) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Dec. 31, 2021
Prepaid software licenses $ 45,424 $ 36,424 $ 28,314
Prepaid insurance costs 20,437 16,746 11,179
Trade show advances 24,848 18,707 22,728
Prepaid rent 0 27,043 0
Prepaid office and other costs 57,743 38,772 18,836
Total prepaid expenses $ 148,452 $ 137,692 $ 81,057