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Note 5 - Inventories (Tables)
6 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
 
June 30, 2017
 
 
December 31, 2016
 
Raw materials
  $
62
     
59
 
Work in process
   
16
     
 
Finished goods
   
115
     
76
 
Total
  $
193
     
135