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Note 9 - Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Number of
options

   

Weighted
average exercise
price

   

Weighted

average

remaining

contractual

term

   

Aggregate

intrinsic-value

 

Outstanding at the beginning of the year

    99,425     $ 20.74       2.5     $ 316  

Granted

    10,600       19.61                  

Exercised

    (26,000 )     14.77                  

Forfeited or expired

                           

Outstanding at the end of the year

    84,025     $ 22.45       2.7     $ 765  

Exercisable at the end of the year

    60,475     $ 23.12       1.5     $ 510  
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
   

Number of
RSUs and

PSUs

   

Weighted average

grant-date
fair value

 

Unvested as at the beginning of the year

    1,281,751     $ 24.97  

Granted

    917,455       20.14  

Vested

    (405,205 )     31.27  

Forfeited

    (190,493 )     21.55  

Unvested at the end of the year

    1,603,508     $ 21.01