Quarterly report [Sections 13 or 15(d)]

Note 7 - Marketable Debt Securities (Tables)

v3.25.2
Note 7 - Marketable Debt Securities (Tables)
9 Months Ended
Aug. 31, 2025
Notes Tables  
Marketable Securities [Table Text Block]
   

Cost

   

Unrealized Gains

   

Unrealized Losses

   

Fair Value

   

Investments

 

Corporate bonds

  $ 1,475     $ 20     $ -     $ 1,495     $ 1,495  

U.S. Treasury securities

    999       7       -       1,006       1,006  

Total

  $ 2,474     $ 27     $ -     $ 2,501     $ 2,501  
   

Cost

   

Unrealized Gains

   

Unrealized Losses

   

Fair Value

   

Investments

 

Corporate bonds

  $ 2,950     $ 18     $ -     $ 2,968     $ 2,968  

U.S. Treasury securities

    5,889       47       -       5,936       5,936  

Total

  $ 8,839     $ 65     $ -     $ 8,904     $ 8,904  
Investments Classified by Contractual Maturity Date [Table Text Block]
   

August 31, 2025

 
   

Cost

   

Fair Value

 

Due within one year or less

  $ 1,475     $ 1,495  

Due after one year through five years

    999       1,006  
    $ 2,474     $ 2,501  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
                   

August 31, 2025

 
                   

Fair Value Measurement Based on

 
                   

Quoted Prices in Active Market

   

Significant Other Observable Inputs

   

Significant Unobservable Inputs

 
   

Cost

   

Fair Value

   

(Level 1)

   

(Level 2)

   

(Level 3)

 

Cash equivalents

  $ 551     $ 551     $ 551     $ -     $ -  

Corporate bonds

    1,475       1,495       -       1,495       -  

U.S. Treasury securities

    999       1,006       -       1,006       -  

Total

  $ 3,025     $ 3,052     $ 551     $ 2,501     $ -  
                   

November 30, 2024

 
                   

Fair Value Measurement Based on

 
                   

Quoted Prices in Active Market

   

Significant Other Observable Inputs

   

Significant Unobservable Inputs

 
   

Cost

   

Fair Value

   

(Level 1)

   

(Level 2)

   

(Level 3)

 

Cash equivalents

  $ 11,304     $ 11,304     $ 11,304     $ -     $ -  

Corporate bonds

    2,950       2,968       -       2,968       -  

U.S. Treasury securities

    5,889       5,936       -       5,936       -  

Total

  $ 20,143     $ 20,208     $ 11,304     $ 8,904     $ -