4. Leases: Schedule of lease costs and other information relating to the Company's operating leases (Details)	3 Months Ended	6 Months Ended
	Apr. 30, 2020 USD ($)	Apr. 30, 2020 USD ($)
Details
Operating Lease, Cost	$ 425,712	$ 613,903
Short-term Lease, Cost	52,809	103,924
Variable Lease, Cost	14,098	28,467
Lease, Cost	$ 492,619	746,294
Operating cash flows from operating leases		379,363
Right-of-use assets obtained in exchange for new operating lease liabilities		$ 14,418
Operating Lease, Weighted Average Remaining Lease Term	2 years 7 months 28 days	2 years 7 months 28 days
Operating Lease, Weighted Average Discount Rate, Percent	9.75%	9.75%