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Long-term bank loan (Detail Textuals)
¥ in Millions
Jul. 04, 2017
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Jul. 04, 2017
CNY (¥)
Debt Instrument [Line Items]        
Working capital loan   $ 640,455 $ 661,167  
Jianxin Bank of Lishui | Loan agreement        
Debt Instrument [Line Items]        
Working capital loan $ 640,455     ¥ 4.4
Maturity date May 15, 2019      
Effective interest rate 9.60%     9.60%