Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

INCOME TAXES - Changes in Unrecognized Tax Benefits (Details)

v3.20.4
INCOME TAXES - Changes in Unrecognized Tax Benefits (Details)
12 Months Ended
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2020
CNY (¥)
Income Tax Contingency [Line Items]        
Balance at beginning period $ 4,176,537 $ 4,098,783    
Addition for tax positions of the current year 154,041 993,194 $ 1,309,648  
Lapse of statute of limitations (1,054,163) (915,440)    
Effect of exchange rate changes 220,281      
Balance at ending period $ 3,188,615 $ 4,176,537 $ 4,098,783  
Minimum        
Income Tax Contingency [Line Items]        
Possible change on company's unrecognized tax benefits for next twelve months | ¥       ¥ 0
Maximum        
Income Tax Contingency [Line Items]        
Possible change on company's unrecognized tax benefits for next twelve months | ¥       ¥ 6,235,266