Inventories (Details Textual) - USD ($) $ in Millions	3 Months Ended
Sep. 26, 2015	Jun. 27, 2015
Inventories (Textual)
Raw material inventory reserves, Description	The Company considers raw material inventory obsolete and reserves for it if the raw material has not been placed into production within 365 days. The Company reviews its assembled devices for excess and records a reserve if the quantity of assembled devices in inventory is in excess of the greater of the quantity shipped in the previous twelve months, the quantity in backlog or the quantity forecasted to be shipped in the following twelve months.
Inventory reserved	$ 2.4	$ 2.8

Amount of difference between inventory at lower of LIFO cost or market and inventory at lower of other inventory accounting method cost or market, for example, but not limited to, FIFO or average cost.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(c))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_InventoryLIFOReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant