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Schedule II Valuation And Qualifying Accounts
12 Months Ended
Dec. 31, 2011
Schedule II Valuation And Qualifying Accounts [Abstract]  
Schedule II Valuation And Qualifying Accounts

Schedule II Valuation and Qualifying Accounts

 

     Balance at
Beginning
of Year
     Additions
Charged to
Costs or
Expenses or
Revenue
     Deductions
and Write
Offs
    Balance At
End Of Year
 
     (In thousands)  

Year ended December 31, 2011

          

Allowance for doubtful accounts

   $ 617       $ 130       $ (345   $ 402   

Product return reserve

     551         4,996         (4,712     835   

Year ended December 31, 2010

          

Allowance for doubtful accounts

   $ 1,008       $ 233       $ (624   $ 617   

Product return reserve

     1,199         2,845         (3,493     551   

Year ended December 31, 2009

          

Allowance for doubtful accounts

   $ 943       $ 520       $ (455   $ 1,008   

Product return reserve

     895         5,657         (5,353     1,199   

Schedules not listed above have been omitted because they are not applicable or are not required or the information required to be set forth therein is included in the consolidated financial statements and notes thereto.