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Note 3 - Shareholder's Equity (Tables)
6 Months Ended
Jun. 30, 2025
Notes Tables  
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
           

Weighted Average

 
           

Grant Date Price

 
   

RSUs

   

of Awards

 
                 

Outstanding, December 31, 2024

    256,675     $ 4.38  

Granted to employees and non-employee directors

    9,870       5.79  

Vested

    (10,715 )     5.32  

Outstanding, June 30, 2025

    255,830       4.40  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
           

Weighted Average

 
           

Exercise Price

 
   

Options

   

Per Option

 
                 

Options outstanding, December 31, 2024

    61,100     $ 4.17  

Exercised

    -       0.00  

Options outstanding, June 30, 2025

    61,100       4.17  

Options exercisable, June 30, 2025

    25,264       4.14