Note 14 - Operating Leases (Details Textual) - USD ($)	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Operating Lease, Right-of-Use Asset	$ 25,545		$ 27,879
Operating Lease, Liability, Current	9,671		9,537
Operating Lease, Liability, Noncurrent	15,874	$ 18,342	18,342
Lease, Cost, Total	$ 6,080	8,151
Operating Lease, Weighted Average Remaining Lease Term (Month)	2 years 240 days
Operating Lease, Weighted Average Discount Rate, Percent	5.50%
Other Assets [Member]
Operating Lease, Right-of-Use Asset	$ 25,545		$ 27,879
Accrued Expenses [Member]
Operating Lease, Liability, Current	$ 9,671	$ 9,537
Minimum [Member]
Lessee, Operating Lease, Term of Contract (Month)		1 year
Maximum [Member]
Lessee, Operating Lease, Term of Contract (Month)		5 years