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Note 6 - Inventory (Tables)
6 Months Ended
Jun. 30, 2024
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

June 30,

   

December 31,

 
   

2024

   

2023

 
                 

Finished goods

  $ 4,360,526     $ 4,373,056  

Fabricated assemblies

    59,156       59,184  

Reserve on finished goods

    (3,986,500 )     (3,986,500 )

Total inventory

  $ 433,182     $ 445,740