Note 15 - Equity Incentive Plan and Stock Based Compensation - Summary of Shares Issued (Details) - shares	3 Months Ended	9 Months Ended
Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2023	Aug. 31, 2022
Shares issued (in shares)	5,000	5,000	88,251	106,167
Unvested shares forfeit upon termination (in shares)			(13,999)	(8,333)
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	82,250	94,500

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration