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Note A - Summary of Accounts Receivable (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Accounts receivable $ 3,405,190 $ 645,867
Allowance for doubtful accounts (13,785) (20,526)
Accounts receivable, net of allowances for doubtful accounts $ 3,391,405 $ 625,341