Segment and Geographic Information - Net Sales by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 27, 2015	Jun. 28, 2014
Segment Reporting Information [Line Items]
Net sales	$ 43,091	$ 35,030
Component Processing [Member]
Segment Reporting Information [Line Items]
Net sales	38,284	30,298
Micromachining [Member]
Segment Reporting Information [Line Items]
Net sales	$ 4,807	$ 4,732

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration