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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

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References 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)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition 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). + References 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 + Details
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