Accounts payable and accrued liabilities (Tables)
 12 Months Ended
Oct. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]  
Schedule of accounts payable and accrued liabilities
October 31, 2021October 31, 2020
$$
Accounts payable9,447,3942,454,421
Accrued expenses6,452,7541,177,377
Accrued compensation2,800,968732,574
18,701,1164,364,372