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Segment, Customer Concentration and Geographical Information - Company Revenue in Different Geographic Locations (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Revenue from External Customer [Line Items] |  |  |  |
Total revenues | $ 9,448 | $ 8,746 | $ 26,425 | $ 30,832
Americas [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenues | 8,859 | 8,318 | 25,447 | 29,340
EMEA [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenues | 541 | 166 | 719 | 788
Asia Pacific [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenues | $ 48 | $ 262 | $ 259 | $ 704

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References 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 + Details
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