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Segment Reporting and Significant Customer Information - Assets by Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Revenue for each segment recognized based on customer location
Long-lived assets	$ 4,641	$ 4,921
Total assets	46,636	45,672
Elimination
Revenue for each segment recognized based on customer location
Long-lived assets	0	0
Total assets	(76,022)	(72,864)
Asia Pacific | Operating Segments
Revenue for each segment recognized based on customer location
Long-lived assets	130	140
Total assets	3,799	3,697
Europe | Operating Segments
Revenue for each segment recognized based on customer location
Long-lived assets	448	496
Total assets	55,202	54,593
North America | Operating Segments
Revenue for each segment recognized based on customer location
Long-lived assets	4,063	4,285
Total assets	$ 63,657	$ 60,246

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- Definition

Segment reporting information assets.

+ References

No definition available.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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