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Note 5 - Inventories, Net
9 Months Ended
Sep. 30, 2018
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE
5:
     INVENTORIES, NET
 
Inventories consist of:
 
(in thousands)  
September 30, 2018
   
December 31, 2017
 
                 
Raw materials
  $
1,943
    $
2,549
 
Work-in-process
   
782
     
390
 
Finished goods
   
27
     
27
 
Totals
  $
2,752
    $
2,966