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Note 5 - Inventories, Net
6 Months Ended
Jun. 30, 2018
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE
5:
     INVENTORIES, NET
 
Inventories consist of:
 
   
June 30, 2018
   
December 31, 2017
 
                 
Raw materials
  $
2,055,544
    $
2,549,016
 
Work-in-process
   
550,754
     
389,630
 
Finished goods
   
41,722
     
26,977
 
Totals
  $
2,648,020
    $
2,965,623