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Note 11 - Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands | Feb. 29, 2024 | Nov. 30, 2023
--- | --- | ---
Intangible assets, gross carrying amount | $ 4,361 | $ 4,361
Intangible assets, accumulated amortization | (851) | (778)
Intangible assets, net carrying amount | 3,510 | 3,583
Trademarks [Member] |  |
Intangible assets, gross carrying amount | 360 | 360
Intangible assets, net carrying amount | 360 | 360
Patents [Member] |  |
Intangible assets, gross carrying amount | 3,931 | 3,931
Intangible assets, accumulated amortization | (787) | (723)
Intangible assets, net carrying amount | $ 3,144 | 3,208
Patents [Member] | Minimum [Member] |  |
Finite lived intangible assets, useful life (Year) | 10 years |
Patents [Member] | Maximum [Member] |  |
Finite lived intangible assets, useful life (Year) | 17 years |
Customer Lists [Member] |  |
Finite lived intangible assets, useful life (Year) | 2 years |
Intangible assets, gross carrying amount | $ 70 | 70
Intangible assets, accumulated amortization | (64) | (55)
Intangible assets, net carrying amount | $ 6 | $ 15

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-1 + Details
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