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Related party transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related party transactions	Related party transactions On July 14, 2016, the Company appointed a new member to the Board of Directors. The director is currently the President and Chief Executive Officer of a business that subleases space from the Company. The sublease was entered into several years before the director's appointment. For the year ended December 31, 2017, the Company received $332 in this related party transaction.

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- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-URI http://asc.fasb.org/topic&trid=2122745

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