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Inventories
6 Months Ended
Jun. 30, 2012
Inventories [Abstract]  
Inventories

(3) Inventories

A summary of inventories is as follows (in thousands):

 

                 
    June 30,     December 31,  
    2012     2011  

Raw materials and subassemblies

  $ 40,440     $ 45,829  

Work-in-process

    8,306       8,294  

Finished goods

    33,745       29,059  

Reserve for excess and obsolete inventories

    (12,989     (13,037
   

 

 

   

 

 

 

Total

  $ 69,502     $ 70,145