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Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories
Note D: Inventories
 
Inventories consisted of the following (in thousands):
             
   
March 31,
   
December 31,
 
   
2015
   
2014
 
Components
  $ 1,563     $ 1,760  
Finished goods
    417       474  
    $ 1,980     $ 2,234