SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Foreign Currency Translation (Details)	Sep. 30, 2020	Sep. 30, 2019
RMB
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Exchange rate	0.147	0.140
HKD
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Exchange rate	0.129	0.128
Weighted Average
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Exchange rate	0.143	0.146