Basis of Presentation Cash and Cash Equivalents and Restricted Cash reconciliation (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Mar. 31, 2018	Dec. 30, 2017	Apr. 01, 2017
Cash and Cash Equivalents [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 52,129	$ 76,792	$ 62,251
Restricted Cash, Current	1,104	0	0
Restricted Cash	0	1,093	1,087
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 53,233	$ 77,885	$ 63,338	$ 57,732