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Note 3 - Inventories
3 Months Ended
Mar. 31, 2017
Notes to Financial Statements  
Inventory Disclosure [Text Block]
3.
     
Inventories (In thousands)
 
 
 
March 31
,
20
17
 
 
December 31,
20
16
 
                 
Inventories consist of:
               
Finished products
   
45
     
45
 
Net inventory
  $
45
     
45