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Note 9 - Patent Rights (Tables) | 12 Months Ended
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Nov. 30, 2021
Notes Tables |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Fiscal Year |  |  |  |
2022 |  | $ | 244 |
2023 |  |  | 244 |
2024 |  |  | 244 |
2025 |  |  | 244 |
2026 |  |  | 244 |
Thereafter |  |  | 2,448 |
Total |  | $ | 3,668 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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