Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable and Concentration of Credit Risk (Components of Accounts Receivable) (Details)

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Accounts Receivable and Concentration of Credit Risk (Components of Accounts Receivable) (Details) - USD ($)
Mar. 31, 2021
Sep. 30, 2020
Accounts Receivable and Concentration of Credit Risk [Abstract]    
Trade receivables, gross $ 5,287,926 $ 5,332,786
Less: allowance for doubtful accounts (24,643) (25,643)
Less: allowance for sales and payment term discounts (114,129) (79,906)
Accounts receivable, net $ 5,149,154 $ 5,227,237