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Accrued Liabilities (Tables)
 6 Months Ended
Jun. 28, 2014
Accrued Liabilities

Accrued liabilities consist of the following:

 

     As of
June 28, 2014		      As of
December 31, 2013		  

Accrued compensation and benefits

    $ 11,735       $ 11,591   

Accrued warranties

      2,750         2,364   

Professional and legal fees

      1,673         1,203   

Other accrued liabilities

      4,224         4,975   
  

 

 

     

 

 

  
   $ 20,382       $ 20,133   
  

 

 

     

 

 

  
Activity Related to Accrued Warranties

Activity related to accrued warranties was as follows:

 

     Six Months Ended  
     June 28, 2014     June 29, 2013  

Beginning Balance

    $ 2,364      $ 2,359   

Provision for warranty expense

      1,875        1,758   

Warranty expired

      (1,489 )      (1,664 ) 
  

 

 

    

 

 

  

Ending Balance

    $ 2,750      $ 2,453