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Segment Reporting and Geographic Information - Schedule of Revenue from External Customers by Geographical Areas (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Revenues | $ 4,350 | $ 8,659
United States [Member] |  |
Revenues | 4,327 | 3,550
Israel [Member] |  |
Revenues |  | 3,061
Asia [Member] |  |
Revenues |  | 2,013
Other [Member] |  |
Revenues | $ 23 | $ 35

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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/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=63488584&loc=d3e20235-122688 + Details
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