Segment and Geographic Information -Gross Profit by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 27, 2015	Jun. 28, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	$ 15,377	$ 12,288
Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	(395)	(616)
Micromachining [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	1,662	337
Component Processing [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	$ 14,110	$ 12,567