Business Combination (Details 4) - NeoPhotonics Semiconductor [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Revenue	$ 83,560	$ 95,683	$ 250,316	$ 262,217
Net income (loss)	$ 1,404	$ (1,951)	$ 3,689	$ (24,781)
Basic net income (loss) per share	$ 0.03	$ (0.06)	$ 0.10	$ (0.78)
Diluted net income (loss) per share	$ 0.03	$ (0.06)	$ 0.10	$ (0.78)

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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