Acquired Intangible Assets - Components of Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles	$ 1,530	$ 1,376	$ 1,502
Cost of Sales
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles	1,133	1,140	1,095
Selling, service and administration
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles	209	36	210
Research, development and engineering
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles	$ 188	$ 200	$ 197