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Note 6 - Inventory (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

March 31,

   

December 31,

 
   

2025

   

2024

 
                 

Finished goods

  $ 4,078,048     $ 4,098,513  

Fabricated assemblies

    53,289       53,289  

Reserve on finished goods

    (3,773,495 )     (3,773,495 )

Total inventory

  $ 357,842     $ 378,307