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Commitments and contingencies (Details Narrative)
12 Months Ended
Sep. 30, 2023
CNY (¥)
integer
Late fees per day (as a percent) 0.05%
Maximum [Member]  
Number of times fines equals to the underpaid amount | integer 3
Amount of fine | ¥ ¥ 50,000
Minimum [Member]  
Number of times fines equals to the underpaid amount | integer 1
Amount of fine | ¥ ¥ 10,000