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Note 13 - Intangible Assets
 3 Months Ended
Feb. 28, 2025
Notes to Financial Statements  
Intangible Assets Disclosure [Text Block]

13.

INTANGIBLE ASSETS

 

The components of intangible assets were as follows (in thousands):

 

      

Balance at February 28, 2025

  

Balance at November 30, 2024

 
  

Estimated Useful Lives in Years

  

Gross Carrying Amount

  

Accumulated Amortization

  

Net Carrying Amount

  

Gross Carrying Amount

  

Accumulated Amortization

  

Net Carrying Amount

 

Patents

  10-17  $3,955  $(1,042) $2,913  $3,955  $(978) $2,977 

Trademarks

 

Indefinite

   360   —   360   360   —   360 

Customer List

  2   70   (70)  —   70   (70)  — 

Total

     $4,385  $(1,112) $3,273  $4,385  $(1,048) $3,337 

 

The trademarks have an indefinite life and are assessed annually for impairment.  All other intangible assets are finite-lived.

 

Intangible assets amortization expenses are recorded within operating expenses in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Income (Loss).  Total intangible assets amortization expense for the three months ended February 28, 2025 and February 29, 2024 were $0.1 million and $0.1 million, respectively. 

 

Estimated future amortization expense related to intangible assets as of February 28, 2025 are as follows (in thousands):

 

Fiscal Year Ending November 30,

    

2025 (remaining nine months)

 $192 

2026

  257 

2027

  257 

2028

  257 

2029

  257 

Thereafter

  1,693 

Total

 $2,913