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Note 3 - Shareholder's Equity (Tables)
9 Months Ended
Sep. 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

    32,330       5.11  

Vested

    (29,675 )     5.56  

Outstanding, September 30, 2025

    259,330       3.92  
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

    -       -  

Options outstanding, September 30, 2025

    61,100       4.17  

Options exercisable, September 30, 2025

    45,632       3.10