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Note E - Inventory (Tables)
12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
2017
   
2016
 
Current
 
 
 
 
 
 
 
 
Finished goods
   
487,858
     
381,762
 
Fabricated assemblies
   
458,989
     
83,666
 
Total current inventory
  $
946,847
    $
465,428