Acquired Intangible Assets (Tables)

12 Months Ended

Mar. 28, 2015

Intangible Assets Disclosure [Abstract]

Schedule of Finite and Indefinite Lived Intangible Assets

Acquired intangible assets as of March 28, 2015 and March 29, 2014 consisted of the following:

(In thousands, except years)	Weighted Average Useful Life (In years)	2015			2014
Developed technology	6.7	$	20,001		$	13,315
Customer relationships	5.6	3,154			3,154
Customer backlog	0.9	1,341			1,250
Trade name and trademarks	3	463			463
Fair value of below-market lease (non-current portion)	3.8	310			310
Change of control agreements	1	100			100
Patents	12.9	3,469			3,427
In-process research and development	Indefinite	—			3,204
		28,838			25,223
Less accumulated amortization		(19,880		)	(18,378		)
Total acquired intangible assets		$	8,958		$	6,845

Schedule of Components of Amortization Expense

Amortization expense for acquired intangible assets has been recorded on the Consolidated Statements of Operations as follows:

(In thousands)	2015		2014		2013
Cost of sales	$	1,095	$	2,293	$	4,239
Selling, service and administration	210		212		305
Research, development and engineering	197		480		240
	$	1,502	$	2,985	$	4,784

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The estimated amortization expense for acquired intangible assets in future years is as follows (in thousands):

Year	Amortization
2016	$	(1,375	)
2017	(1,208		)
2018	(1,199		)
2019	(1,199		)
2020	(1,147		)
Future years	(2,830		)
	$	(8,958	)