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Note 8 - Income Taxes - Components of Loss Before Income Taxes (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
U.S. operations $ (5,757,824) $ (6,766,409)
Foreign operations (51,335) (29,052)
Total loss before provision for income taxes $ (5,809,159) $ (6,795,461)