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, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Details
Operating Lease, Cost	$ 48,113	$ 425,712	$ 97,135	$ 613,903
Short-term Lease, Cost	17,848	52,809	38,707	103,924
Variable Lease, Cost	4,302	14,098	7,453	28,467
Lease, Cost	$ 70,263	$ 492,619	143,295	$ 746,294
Operating cash flows from operating leases			57,282
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 0
Operating Lease, Weighted Average Remaining Lease Term	3 years 3 months 18 days		3 years 3 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	9.75%		9.75%