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Other Noncurrent Assets (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Other Noncurrent Assets (Textual)        
Amortization of prepayment for lease of land use right $ 6,790 $ 6,697 $ 13,418 $ 13,582
Description of lease prepayment life     Extends the life of the lease to January 31, 2060.