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Geographical Data - Revenue by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |
Total Revenue | $ 3,481 | $ 4,344 | $ 11,417 | $ 14,950
Domestic |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Revenue | 2,408 | 3,158 | 8,059 | 10,971
Foreign |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Revenue | $ 1,073 | $ 1,186 | $ 3,358 | $ 3,979

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- Definition Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and 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(d)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Details
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- Details
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