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EMPLOYEE BENEFIT PLAN AND PROFIT APPROPRIATION (Details) - CNY (¥)
¥ in Thousands
 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
EMPLOYEE BENEFIT PLAN AND PROFIT APPROPRIATION      
Defined contribution plan, cost recognized ¥ 1,700 ¥ 1,280 ¥ 1,690
Percentage of entity registered capital 50.00%    
Statutory surplus reserve fund annual appropriation percentage 10.00%    
Statutory surplus reserve fund appropriations ¥ 15,133 ¥ 15,133