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Note 1 - Basis of Presentation (Details Textual) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current $ 319,000   $ 319,000
Capitalized Computer Software, Additions 378,197 $ 246,210  
Asset Impairment Charges 0   0
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction $ 769,789   $ 755,494