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Note E - Inventory
12 Months Ended
Dec. 31, 2017
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE E
—INVENTORY
 
Inventory is stated at the lower of cost, determined on a
first
in,
first
out basis, or
realizable value, and consists primarily of fabricated assemblies and finished goods. Inventory is comprised of the following as of
December 31: 
 
   
2017
   
2016
 
Current
 
 
 
 
 
 
 
 
Finished goods
   
487,858
     
381,762
 
Fabricated assemblies
   
458,989
     
83,666
 
Total current inventory
  $
946,847
    $
465,428