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Selected Statements of Operations Data (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of revenues from sales to unaffiliated customers
Revenues	$ 37,233	$ 29,510	$ 18,673
North America [Member]
Schedule of revenues from sales to unaffiliated customers
Revenues	25,157	19,167	1,018
Europe [Member]
Schedule of revenues from sales to unaffiliated customers
Revenues	778	946	1,204
Asia (excluding Philippines) [Member]
Schedule of revenues from sales to unaffiliated customers
Revenues	374	355	576
Philippines [Member]
Schedule of revenues from sales to unaffiliated customers
Revenues	4,501	4,959	8,071
South America (excluding Brazil) [Member]
Schedule of revenues from sales to unaffiliated customers
Revenues	883	785	2,456
Brazil [Member]
Schedule of revenues from sales to unaffiliated customers
Revenues	1,783	2,496	3,487
Other (including Israel) [Member]
Schedule of revenues from sales to unaffiliated customers
Revenues	$ 3,757	$ 802	$ 1,861

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- References

No definition available.

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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

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