BORROWINGS - Additional Information (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
BORROWINGS
Interest Expense, Debt	¥ 8,260	¥ 5,735	¥ 4,680

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Name:	us-gaap_InterestExpenseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration