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Note 5 - Inventory
9 Months Ended
Sep. 30, 2016
Notes to Financial Statements  
Inventory Disclosure [Text Block]
5.
INVENTORY
 
Inventory is stated at the lower of cost, determined on a first in, first out basis, or market, and consists primarily of fabricated assemblies and finished goods. Inventory is comprised of the following as of: 
 
 
 
September 30,
 
 
December 31,
 
 
 
2016
 
 
2015
 
                 
Finished goods
  $ 330,947     $ 246,475  
Fabricated assemblies
    237,289       102,170  
Total inventory
  $ 568,236     $ 348,645