Note 11 - Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands |
Aug. 31, 2022 |
Nov. 30, 2021 |
|---|---|---|
| Intangible assets, gross carrying amount | $ 4,368 | $ 3,895 |
| Intangible assets, accumulated amortization | (416) | (227) |
| Intangible assets, net carrying amount | 3,952 | 3,668 |
| Trademarks [Member] | ||
| Intangible assets, gross carrying amount | 360 | 0 |
| Intangible assets, net carrying amount | 360 | 0 |
| Patents [Member] | ||
| Intangible assets, gross carrying amount | 3,938 | 3,895 |
| Intangible assets, accumulated amortization | (405) | (227) |
| Intangible assets, net carrying amount | 3,533 | 3,668 |
| Customer Lists [Member] | ||
| Intangible assets, gross carrying amount | 70 | 0 |
| Intangible assets, accumulated amortization | (11) | 0 |
| Intangible assets, net carrying amount | $ 59 | $ 0 |
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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