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Segment Reporting and Concentrations (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 14,120	$ 14,953
United States
Segment Reporting Information [Line Items]
Revenues	5,979	6,621
United Kingdom
Segment Reporting Information [Line Items]
Revenues	2,955	3,285
The Netherlands
Segment Reporting Information [Line Items]
Revenues	1,762	1,894
Canada
Segment Reporting Information [Line Items]
Revenues	1,469	1,475
Other - principally Europe
Segment Reporting Information [Line Items]
Revenues	$ 1,955	$ 1,678

X

- 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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- Definition

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+ References

No definition available.

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