4. Leases: Schedule of lease costs and other information relating to the Company's operating leases (Details) - USD ($)	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Details
Operating lease cost	$ 31,441	$ 48,113	$ 54,365	$ 97,135
Short-term lease cost	3,464	17,848	6,937	38,707
Variable lease cost	$ 2,606	$ 4,302	4,245	$ 7,453
Operating cash flows from operating leases			73,886
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 0
Operating Lease, Weighted Average Remaining Lease Term	4 years		4 years
Operating Lease, Weighted Average Discount Rate, Percent	9.75%		9.75%