Share-Based Compensation - Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	$ 6,437	$ 4,232	$ 4,542
Cost of Sales
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	503	445	586
Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	5,197	3,004	2,847
Research and Development Expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	$ 737	$ 783	$ 1,109