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Note G - Inventory (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

2022

   

2021

 
                 

Finished goods

  $ 4,764,643     $ 4,798,203  

Fabricated assemblies

    69,726       142,457  
Reserve on finished goods     (400,000 )     -  

Total inventory

  $ 4,434,369     $ 4,940,660