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Accounts receivable (Tables)

12 Months Ended

Dec. 31, 2017

Receivables [Abstract]

Schedule of accounts receivable

		December 31, 2017				December 31, 2016
Trade		$	45,158			$	38,746
Holdbacks		558				528
Other		1,512				806
		$	47,228			$	40,080

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- References

No definition available.

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3,4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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