4. Leases: Schedule of lease costs and other information relating to the Company's operating leases (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Details
Operating lease cost	$ 31,441	$ 46,969	$ 85,806	$ 144,104
Short-term lease cost	3,398	17,848	10,335	56,555
Variable lease cost	$ 2,093	$ 1,414	6,338	$ 8,867
Operating cash flows from operating leases			106,392
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 0
Operating Lease, Weighted Average Remaining Lease Term	3 years 9 months 7 days		3 years 9 months 7 days
Operating Lease, Weighted Average Discount Rate, Percent	9.75%		9.75%