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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of credit risk and uncertainties (Details)
12 Months Ended
Oct. 31, 2022
USD ($)
Oct. 31, 2022
CNY (¥)
Oct. 31, 2022
CNY (¥)
Oct. 31, 2021
USD ($)
Effects of Reinsurance [Line Items]        
General insurance expense | ¥   ¥ 500,000    
Cash and due from banks $ 2,508     $ 30,024,372
Transfer pricing related adjustments 250,000      
PRC        
Effects of Reinsurance [Line Items]        
General insurance expense 68,000 ¥ 500,000    
Cash and due from banks 695,000   ¥ 5,072,967  
Limited insurance $ 622,000   ¥ 4,541,882