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Note 4 - Accounts Receivable - Schedule of Receivables (Details) - USD ($)
Sep. 30, 2022
Dec. 31, 2021
Allowance for doubtful accounts $ (137,885) $ (121,022)
Accounts receivable, net 6,402,821 4,468,863
Trade Accounts Receivable [Member]    
Accounts receivable, gross 5,026,184 3,688,116
Premium [Member]    
Accounts receivable, gross $ 1,514,522 $ 901,769