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Note 1 - Organization and Summary of Significant Accounting Policies - Accounts Receivable (Details) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Accounts receivable $ 246,138 $ 466,159
Billed Revenues [Member]    
Accounts receivable 96,404 410,617
Unbilled Revenues [Member]    
Accounts receivable $ 149,734 $ 55,542