Quarterly report [Sections 13 or 15(d)]

Note 13 - Intangible Assets - Components of Intangible Assets (Details)

v3.25.1
Note 13 - Intangible Assets - Components of Intangible Assets (Details) - USD ($)
$ in Thousands
Feb. 28, 2025
Nov. 30, 2024
Intangible assets, gross carrying amount $ 4,385 $ 4,385
Intangible assets, accumulated amortization (1,112) (1,048)
Intangible assets, net carrying amount 3,273 3,337
Trademarks [Member]    
Intangible assets, gross carrying amount 360 360
Intangible assets, net carrying amount 360 360
Patents [Member]    
Intangible assets, gross carrying amount 3,955 3,955
Intangible assets, accumulated amortization (1,042) (978)
Intangible assets, net carrying amount $ 2,913 2,977
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 (70) (70)
Intangible assets, net carrying amount $ 0 $ 0