v3.22.2.2
Significant Accounting Policies (Details) - USD ($)
6 Months Ended
Apr. 01, 2019
May 01, 2018
Mar. 31, 2022
Mar. 31, 2021
Sep. 30, 2021
Significant Accounting Policies (Details) [Line Items]          
Restricted cash     $ 1,008,553 $ 947,422 $ 1,304,518
Allowance for doubtful accounts     $ 3,117,300   3,066,937
Residual value percentage     5.00%    
VAT rate 13.00%   15.00% 15.00%  
Received government grants     $ 321,658 $ 1,141,639  
Shipping and handling costs     611,566 $ 652,465  
Cash and cash equivalents     $ 16,848,069   $ 15,350,197
Maximum [Member]          
Significant Accounting Policies (Details) [Line Items]          
VAT rate   17.00%      
Minimum [Member]          
Significant Accounting Policies (Details) [Line Items]          
VAT rate   16.00%