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Headquarter Relocation (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Grant Agreement, Maximum Value	$ 1,400
Revenue from Grants	338
Headquarter Relocation [Member]
Headquarter relocation costs	$ 493	$ 1,769

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- Definition

Grant Agreement, Maximum Value

+ References

No definition available.

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Balance Type:	debit
Period Type:	instant

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- Definition

Headquarter relocation costs

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

Revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements.

+ 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(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Details

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