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Note 12 - Share-based Compensation (Tables)
3 Months Ended
Feb. 28, 2025
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three months ended

 
   

February 28,

   

February 29,

 
   

2025

   

2024

 

Stock options

  $ 459     $ 1,322  

Performance share unit plan

    454       1,027  

Deferred share unit plan

    70       60  
    $ 983     $ 2,409  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Number of

stock

options

   

Weighted-

average

exercise

price per

share

   

Weighted-

average

remaining

contractual

term

(years)

   

Aggregate

intrinsic

value

 

November 30, 2024

    8,849,535     $ 6.12                  

Expired

    (590,835 )     7.48                  

February 28, 2025

    8,258,700     $ 6.00       2.20     $ 6.00  

Vested and exercisable as of February 28, 2025

    5,750,648     $ 6.65       1.64     $ 2.00  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Three months ended

 
   

February 28,

   

February 29,

 
   

2025

   

2024

 

Weighted-average assumptions used to value stock option awards:

               

Expected volatility

          48.7 %

Expected term of options (years)

          4  

Expected dividend rate

           

Risk-free interest rate

          4.29 %

Expected forfeiture rate

          3.0 %

Weighted-average grant-date fair value

  $     $ 1.76  

Intrinsic value of options exercised

  $     $ 471  

Cash received from options exercised

  $     $  
Schedule of Nonvested Performance-Based Units Activity [Table Text Block]
   

Number of PSU awards

   

Weighted- average grant day fair value per award

   

Aggregate

intrinsic

value

 

November 30, 2024

    1,633,500     $ 5.32          

Vested and paid out/released

    (102,100 )   $ 6.67          

Performance adjustment

    (306,300 )   $ 6.67          
February 28, 2025     1,225,100     $ 4.87     $ 0.00  
Schedule of Share-Based Payment Award, Performance Share Units, Valuation Assumptions [Table Text Block]
    Three months ended  
   

February 28,

   

February 29,

 
   

2025

   

2024

 

Weighted-average assumptions used to value PSU awards:

               

Expected volatility of Company shares

          42.5 %

Expected volatility of TSX index

          29.2 %

Expected correlation between Company shares and TSX

          78.3 %

Expected term of PSUs (years)

          3  

Risk-free interest rate

          4.22 %

Number of PSUs granted

          886,800  

Weighted-average grant-date fair value

        $ 4.20