Current Liabilities (Tables)

3 Months Ended

Mar. 29, 2014

Accounts Payable and Accrued Liabilities, Current [Abstract]

Deferred Revenue, by Arrangement, Disclosure

Changes in our deferred service revenue were as follows:

	Three Months Ended
(In thousands)	March 29, 2014			March 30, 2013
Balance, beginning of the period	$	5,499		$	6,062
Additions	573			2,303
Revenue recognized	(1,294		)	(1,475		)
Balance, end of the period	$	4,778		$	6,890
Balance sheets classification
Deferred service income-short term	$	3,753		$	5,102
Deferred service income-long term	1,025			1,788
Balance, end of period	$	4,778		$	6,890

Schedule of Accrued Liabilities

Other current liabilities consisted of the following:

(In thousands)	March 29, 2014		December 31, 2013
Salaries and benefits	$	6,144	$	8,771
Warranty accrual	1,055		1,142
Advanced billings	1,467		2,522
Other	2,838		2,660
Balance, end of the period	$	11,504	$	15,095

Schedule of Product Warranty Liability

Changes in our warranty accrual were as follows:

	Three Months Ended
(In thousands)	March 29, 2014			March 30, 2013
Balance, beginning of the period	$	1,142		$	2,273
Liabilities accrued for warranties issued	282			518
Warranty claims paid and utilized	(478		)	(668		)
Changes in accrued warranty liabilities	109			(76		)
Balance, end of the period	$	1,055		$	2,047