4. Leases: Schedule of Future Minimum Rental Payments for Operating Leases (Details)	Jan. 31, 2022 USD ($)
Details
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	$ 92,698
Operating Leases, Future Minimum Payments, Due in Two Years	117,944
Operating Leases, Future Minimum Payments, Due in Three Years	116,657
Operating Leases, Future Minimum Payments, Due in Four Years	96,523
Operating Leases, Future Minimum Payments, Due in Five Years	57,806
Operating Leases, Future Minimum Payments, Due Thereafter	9,873
Operating Lease Liability, Gross	491,501
Operating Leases Future Minimum Payments Interest Included In Payments	(85,644)
Operating Lease, Liability	$ 405,857