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Organization and Summary of Significant Accounting Policies - (Details) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2015 | Apr. 30, 2015 | Apr. 29, 2014
Business Acquisition [Line Items] |  |  |
Period of completed acquisitions | 2 years |  |
Avantec [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Percentage of interest acquired |  | 85.00% |
Avantec [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Percentage of ownership under the equity method |  |  | 15.00%

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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