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Note 2 - Inventories
3 Months Ended
Sep. 30, 2017
Notes to Financial Statements  
Inventory Disclosure [Text Block]
Note
2
. Inventories
 
Inventories are stated at the lower of cost or market using the
first
-in,
first
-out method and consist of the following:
 
   
September 30,
 
June 30,
 
   
2017
     
2017
 
                   
Raw materials
  $
3,798
      $
3,847
 
Work-in-process
   
1,314
       
1,963
 
Finished goods
   
1,930
       
1,835
 
Total
  $
7,042
      $
7,645