Quarterly report [Sections 13 or 15(d)]

Note 5 - Stock Incentive Plan (Tables)

v3.26.1
Note 5 - Stock Incentive Plan (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Options Outstanding

 
   

Number of Shares Subject to Options

   

Weighted-Average Exercise Price

 

Balances at December 31, 2025

    616,555     $ 30.77  

Granted(1)

    65,312       55.08  

Forfeited(2)(3)

    (3,266 )     56.63  

Exercised

    (308 )     24.61  

Balances at June 30, 2026

    678,293       32.99  

Unvested options outstanding expected to vest(3)

    223,881       45.44  
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Exercise Prices

  Number of Shares Subject to Options Outstanding     Weighted-Average Remaining Contractual Term in Years     Number of Shares Subject to Options Fully Vested and Exercisable     Weighted-Average Remaining Contractual Term in Years  

$0.00 - $25.00

    206,725       5.36       191,472       5.22  

$25.01 - $50.00

    331,109       6.42       227,452       5.38  

$50.01 - $75.00

    87,166       8.11       22,691       3.63  

$75.01 - $100.00

    49,293       9.16       12,130       8.28  

$100.01 - $125.00

    4,000       9.29       667       9.29  
      678,293               454,412          
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
           

Weighted- Average

 
            Grant Date  
   

Restricted

   

Fair Value

 
   

Stock Units

   

per Unit

 

Unvested balance at December 31, 2025

    175,634     $ 48.88  

Granted(1)

           

Vested

    (30,452 )     41.42  

Forfeited

    (348 )     15.06  

Unvested Balance at June 30, 2026

    144,834       50.53  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]
   

Three Months Ended June 30,

   

Six Months Ended June 30,

 
   

2026

   

2025

   

2026

   

2025

 
                                 

Stock options granted

    3,084       9,550       65,312       225,881  

Weighted-average grant date fair value per share

  $ 64.22     $ 30.56     $ 50.52     $ 29.23  

Fair value of shares vested

  $ 966,824     $ 957,123     $ 1,613,253     $ 1,702,559