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Commitments and Contingencies - Additional Information (Detail) - USD ($)
6 Months Ended
Apr. 30, 2022
Oct. 31, 2021
Oct. 31, 2020
Commitments [line items]      
Commited Purchase orders for equipments and services   $ 6,900,000 $ 4,200,000
Purchase orders $ 176,722,199 $ 6,858,617