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Significant Accounting Policies (Details) - USD ($)
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Accounting Policies [Abstract]      
Restricted cash $ 1,304,518 $ 908,410  
Allowance for doubtful accounts $ 3,066,937 2,910,554  
Residual value percentage 5.00%    
Received government grants $ 1,190,882 410,532 $ 59,131
Shipping and handling costs 1,341,712 804,264 1,011,670
Advertising costs 237,563 104,933 $ 147,363
Cash and cash equivalents $ 15,350,197 $ 796,794