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Note 5 - Inventories
9 Months Ended
Sep. 30, 2017
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE
5:
     INVENTORIES
 
Inventories
are stated at the lower of cost or net realizable value computed on a
first
-in,
first
-out basis and consist of the following:
 
   
September
30, 2017
   
December 31, 201
6
 
                 
Raw materials
  $
2,762,009
    $
3,062,830
 
Work-in-process
   
234,023
     
159,482
 
Finished goods
   
26,977
     
64,227
 
Totals
  $
3,023,009
    $
3,286,539