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Accounts payable and accrued liabilities
 12 Months Ended
Oct. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]  
Accounts payable and accrued liabilities Accounts payable and accrued liabilities
October 31, 2021October 31, 2020
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Accounts payable9,447,3942,454,421
Accrued expenses6,452,7541,177,377
Accrued compensation2,800,968732,574
18,701,1164,364,372
Accrued expenses include accruals for purchase of plant and equipment, audit fees, legal and consulting fees, and operational and inventory purchases.