Note 14 - Equity Incentive Plan and Stock Based Compensation - Summary of Shares Issued (Details) - shares	3 Months Ended		9 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Shares issued (in shares)	5,000	5,000	106,167	108,500
Unvested shares forfeit upon termination (in shares)			(8,333)	0
Director [Member] | Vesting Immediately [Member]
Shares issued (in shares)	5,000	5,000	20,000	20,000
Employees, Directors, and Consultants [Member] | Awards with Three-year Vesting [Member]
Shares issued (in shares)	0	0	94,500	88,500