GEOGRAPHIC INFORMATION, PRODUCT GROUPS AND CUSTOMER CONCENTRATION INFORMATION - Revenues by Product Group (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 26, 2015	Sep. 27, 2014
Segment Information [Line Items]
Revenues	$ 87,550	$ 89,241
100 Gb/s transmission modules
Segment Information [Line Items]
Revenues	40,828	21,330
40 Gb/s transmission modules
Segment Information [Line Items]
Revenues	10,828	22,166
10 Gb/s and lower transmission modules
Segment Information [Line Items]
Revenues	35,894	38,226
Industrial and consumer
Segment Information [Line Items]
Revenues	$ 0	$ 7,519

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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

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