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Note 3 - Inventories
6 Months Ended
Jun. 30, 2017
Notes to Financial Statements  
Inventory Disclosure [Text Block]
3.
   
Inventories (In thousands)
 
 
 
June 30,
2017
 
 
December 31,
2016
 
                 
Inventories consist of:
               
Finished products
   
45
     
45
 
Net inventory
  $
45
     
45