Accrued Liabilities (Tables)

3 Months Ended

Mar. 30, 2013

Accrued Liabilities

Accrued liabilities consist of the following:

	As of March 30, 2013		As of December 31, 2012
Accrued compensation and benefits	$	9,429	$	9,364
Accrued warranties		2,148		2,359
Professional and legal fees		1,313		1,472
Other accrued liabilities		5,370		5,021
	$	18,260	$	18,216

Accrued Warranties

Activity related to accrued warranties was as follows:

	Three Months Ended
	March 30, 2013			March 31, 2012
Beginning Balance	$	2,359		$	2,365
Provision for warranty expense		873			805
Warranty expired		(1,084	)		(700	)
Ending Balance	$	2,148		$	2,470