Acquired Intangible Assets - Components of Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 1,502	$ 2,985	$ 4,746
Amortization			4,784
Cost of Sales
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	1,095	2,293	4,239
Selling, service and administration
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	210	212	305
Research, development and engineering
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 197	$ 480	$ 240