3. Leases: Schedule of Future Minimum Rental Payments for Operating Leases (Details) - USD ($)	Jan. 31, 2020	Nov. 30, 2019
Details
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	$ 544,340
Operating Leases, Future Minimum Payments, Due in Two Years	534,228
Operating Leases, Future Minimum Payments, Due in Three Years	384,511
Operating Leases, Future Minimum Payments, Due in Four Years	214,820
Operating Leases, Future Minimum Payments, Due in Five Years	1,954
Operating Leases, Future Minimum Payments, Due Thereafter	0
Operating Lease Liability, Gross	1,679,853
Operating Leases Future Minimum Payments Interest Included In Payments	(202,524)
Operating Lease, Liability	$ 1,477,329	$ 1,620,000