Annual report pursuant to Section 13 and 15(d)

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

v3.21.2
Accounts Receivable and Concentration of Credit Risk (Components of Accounts Receivable) (Details) - USD ($)
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Accounts Receivable and Concentration of Credit Risk [Abstract]      
Trade receivables, gross $ 8,938,849 $ 5,332,786  
Less: allowance for doubtful accounts (20,643) (25,643) $ (33,143)
Less: allowance for sales returns and payment term discounts (123,982) (79,906)  
Accounts receivable, net $ 8,794,224 $ 5,227,237