Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Accounts Receivable and Net Sales (Details Textual)

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Note 5 - Accounts Receivable and Net Sales (Details Textual) - USD ($)
Jun. 30, 2018
Sep. 30, 2017
Allowance for Doubtful Accounts Receivable, Current, Ending Balance $ 79,085 $ 79,085