Current Liabilities (Tables)

9 Months Ended

Sep. 29, 2012

Accounts Payable and Accrued Liabilities, Current [Abstract]

Deferred Revenue, by Arrangement, Disclosure

Changes in our deferred service revenue are as follows:

	Three Months Ended						Nine Months Ended
(In thousands)	September 29, 2012			October 1, 2011			September 29, 2012			October 1, 2011
Balance, beginning of the period	$	5,602		$	4,717		$	4,991		$	2,903
Additions	1,478			1,374			5,332			6,585
Revenue recognized	(1,153		)	(1,362		)	(4,396		)	(4,759		)
Balance, end of the period	$	5,927		$	4,729		$	5,927		$	4,729
Balance sheet classification
Deferred service income-short term	$	4,636		$	3,360
Deferred service income-long term	1,291			1,369
Balance, end of period	$	5,927		$	4,729

Schedule of Accrued Liabilities

Other current liabilities consist of the following:

(In thousands)	September 29, 2012		December 31, 2011
Salaries and benefits	$	9,762	$	10,023
Warranty accrual	2,785		2,398
Advanced billing	411		5,809
Accrued taxes-other	591		1,729
Capital lease, current portion	45		176
Other	2,201		2,238
Balance, end of the period	$	15,795	$	22,373

Schedule of Product Warranty Liability

Changes in our warranty accrual are as follows:

	Three Months Ended						Nine Months Ended
(In thousands)	September 29, 2012			October 1, 2011			September 29, 2012			October 1, 2011
Balance, beginning of the period	$	2,795		$	2,674		$	2,398		$	2,111
Liabilities accrued for warranties issued	730			545			2,797			2,313
Warranty claims paid and utilized	(793		)	(529		)	(2,075		)	(1,633		)
Changes in accrued warranty liabilities	53			(414		)	(335		)	(515		)
Balance, end of the period	$	2,785		$	2,276		$	2,785		$	2,276