Basis of Presentation Cash and Cash Equivalents and Restricted Cash reconciliation (Details) - USD ($) $ in Thousands	Dec. 30, 2017	Apr. 01, 2017	Dec. 31, 2016	Apr. 02, 2016
Cash and Cash Equivalents [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 62,251	$ 56,642	$ 44,891
Restricted Cash	1,087	1,090	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 63,338	$ 57,732	$ 44,891	$ 42,413