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CONCENTRATIONS - Concentrations of credit risk (Details)
Oct. 31, 2023
USD ($)
Oct. 31, 2023
CNY (¥)
Oct. 31, 2022
USD ($)
Oct. 31, 2021
USD ($)
Oct. 31, 2020
USD ($)
Concentration Risk          
Cash and restricted cash balances $ 695,075   $ 695,242 $ 30,843,641 $ 6,923,495
China          
Concentration Risk          
Insurance covered for balances at financial institutions and banks 68,000 ¥ 500,000      
Maximum limit for balances with banks covered under insurance | ¥   ¥ 500,000      
Cash and restricted cash balances 695,075   694,651    
Insurance not covered on cash balances $ 623,418   $ 621,929