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Revenue Recognition and Trade Receivables, net, Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenues by Geographic Market [Abstract] |  |  |  |
Revenues | $ 13,267 | $ 27,146 | $ 50,606 | $ 54,723
Minimum [Member] |  |  |  |
Revenues by Geographic Market [Abstract] |  |  |  |
Trade receivables, period for credit term |  |  | 30 days |
Maximum [Member] |  |  |  |
Revenues by Geographic Market [Abstract] |  |  |  |
Trade receivables, period for credit term |  |  | 60 days |
United States [Member] |  |  |  |
Revenues by Geographic Market [Abstract] |  |  |  |
Revenues | 12,483 | 26,427 | $ 49,060 | 52,999
Ex-United States [Member] |  |  |  |
Revenues by Geographic Market [Abstract] |  |  |  |
Revenues | $ 784 | $ 719 | $ 1,546 | $ 1,724

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- Definition Term of trade receivables depending on the customer and type of invoice in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
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