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Note 7 - Stock-based Compensation (Tables)
 6 Months Ended
Jun. 30, 2024
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
  

Stock Options

  

Grant Date Weighted- Average Exercise Price

  

Weighted- Average Remaining Contractual Life (in Years)

  

Intrinsic Value

 

Outstanding at January 1, 2024

  146,000  $2.83   5.44  $- 

Forfeited

  (84,000) $2.87   -  $- 

Outstanding at June 30, 2024

  62,000  $2.76   2.81  $28,000 

Exercisable at June 30, 2024

  42,000  $2.76   1.57  $- 
                 

Outstanding at January 1, 2023

  95,000  $2.76   4.83  $25,000 

Granted

  70,000  $2.82   7.00  $- 

Forfeited

  (19,000) $2.69   -  $- 

Outstanding at June 30, 2023

  146,000  $2.80   5.76  $- 

Exercisable at June 30, 2023

  20,000  $2.92   2.67  $-