Revenue, Product and Geographic Information Revenue from Geographic Location table (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Revenue from External Customer [Line Items]
Revenue, Net	$ 110,624	$ 72,684
Asia [Member]
Revenue from External Customer [Line Items]
Revenue, Net	99,366	66,563
Americas [Member]
Revenue from External Customer [Line Items]
Revenue, Net	6,363	4,170
Europe [Member]
Revenue from External Customer [Line Items]
Revenue, Net	$ 4,895	$ 1,951