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

Cost

  

Unrealized Gains

  

Unrealized Losses

  

Fair Value

  

Investments

 

Corporate bonds

 $2,938  $47  $-  $2,985  $2,985 

U.S. Treasury securities

  2,969   30   -  $2,999  $2,999 

Total

 $5,907  $77  $-  $5,984  $5,984 
  

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]
  

May 31, 2025

 
  

Cost

  

Fair Value

 

Due within one year or less

 $4,907  $4,980 

Due after one year through five years

  999   1,004 
  $5,907  $5,984 
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
          

May 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

 $2,064  $2,064  $2,064  $-  $- 

Corporate bonds

  2,938   2,985   -   2,985   - 

U.S. Treasury securities

  2,969   2,999   -   2,999   - 

Total

 $7,971  $8,048  $2,064  $5,984  $- 
          

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  $-