v3.25.2
Note 5 - Stock Incentive Plan (Tables)
6 Months Ended
Jun. 30, 2025
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, 2024

    428,915     $ 19.35  

Granted(1)

    225,881       31.50  

Forfeited(2)(3)

    (23,527 )     5.58  

Exercised

    (4,738 )     4.25  

Balances at June 30, 2025

    626,531       24.36  

Unvested options outstanding expected to vest(3)

    218,807       27.64  
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

  258,004   5.68   211,658   5.22 

$25.01 - $50.00

  344,688   7.64   172,229   5.58 

$50.01 - $75.00

  22,614   4.48   22,612   4.49 

$75.01 - $100.00

  1,225   4.59   1,225   4.59 
   626,531   6.71   407,724   5.33 
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, 2024

    40,739     $ 13.92  

Granted

    120,941       31.70  

Vested

    (32,975 )     25.04  

Forfeited

    (297 )     3.26  

Unvested Balance at June 30, 2025

    128,408       27.83  
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,

 
  

2025

  

2024

  

2025

  

2024

 
                 

Stock options granted

  9,550   13,718   225,881   15,718 

Weighted-average grant date fair value per share

 $30.56  $2.55  $29.23  $2.40 

Fair value of shares vested

 $957,123  $181,084  $1,702,559  $359,734