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Note 5 - Inventories, Net
3 Months Ended
Mar. 31, 2018
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE
5:
INVENTORIES, NET
 
Inventories consist of:
 
    March 31, 2018     December 31, 2017  
                 
                 
Raw materials   $
2,194,015
    $
2,549,016
 
Work-in-process    
508,752
     
389,630
 
Finished goods    
26,977
     
26,977
 
Totals   $
2,729,744
    $
2,965,623