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Warranty (Tables)
 6 Months Ended
Jun. 29, 2013
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability
A reconciliation of the changes in our warranty liability for the six months ended June 29, 2013 and June 30, 2012 is as follows (in thousands):
 
June 29,
2013
 
June 30,
2012
Balance at beginning of period
$
734

 
$
330

   Accruals
109

 
497

   Settlements
(532
)
 
(383
)
Balance at the end of period
$
311

 
$
444