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Intangibles and Other Assets (Tables)
12 Months Ended
Dec. 31, 2014
Text Block [Abstract]  
Schedule of Intangibles and Other Assets
     December 31,  
         2014              2013      
     (In thousands)  

Purchased patents and other purchased intangible assets

   $ 4,605       $ 5,731   

Other assets

     265         289   
  

 

 

    

 

 

 

Gross intangibles and other assets

     4,870         6,020   

Accumulated amortization of purchased patents and other purchased intangibles

     (4,579      (5,639
  

 

 

    

 

 

 

Intangibles and other assets, net

   $     291       $     381   
  

 

 

    

 

 

 
Schedule of Amortization of Intangibles

Amortization of intangibles was as follows:

 

     Year ended December 31,  
    

    2014    

    

    2013    

    

    2012    

 
     (In thousands)  

Amortization of Intangibles

   $         67       $         79       $         49   
  

 

 

    

 

 

    

 

 

 
Schedule of Estimated Remaining Annual Amortization Expense for Purchased Patents

The table below includes estimated remaining annual amortization expense for purchased patents as of December 31, 2014.

 

     Estimated
Amortization
Expense
 
       (In thousands)    

2015

   $ 20   

2016

     6   
  

 

 

 

Total

   $       26