Revenues by Product Group (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Sep. 28, 2013	Sep. 29, 2012
Segment Information [Line Items]
Revenues	$ 96,648	$ 95,635
40 Gb/s and 100 Gb/s transmission modules
Segment Information [Line Items]
Revenues	38,892	31,445
10 Gb/s and lower transmission modules
Segment Information [Line Items]
Revenues	50,540	58,548
Industrial And Consumer
Segment Information [Line Items]
Revenues	$ 7,216	$ 5,642

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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