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Note 6 - Intangible Assets and Goodwill - Amortization Expense (Details) - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Remainder of 2023 $ 88,122      
2024 146,307      
2025 136,248      
2026 136,248      
2027 136,248      
Thereafter 170,488      
Total $ 813,661 $ 901,783 $ 989,905 $ 1,078,027