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Note 8 - Earnings Per Share - Amounts Used in Computing Earnings Per Share (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Net (Loss) $ (1,414,230) $ (1,555,292) $ (2,389,503) $ (1,752,664) $ (6,507,059) $ (3,746,424) $ (5,359,025) $ (12,006,147)
Weighted average number of common shares used in basic earnings per share (in shares) 5,705,729     5,486,475     5,684,430 4,066,144
Effect of dilutive securities, stock options, RSUs, and warrants (in shares) 0     0     0 0
Weighted average number of common shares and potential dilutive common shares outstanding used in dilutive earnings per share (in shares) 5,705,729     5,486,475     5,684,430 4,066,144