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Summary of significant accounting policies (Tables)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Disaggregation of Revenue

The following table provides disaggregated revenue from contracts with customers by geographical market, as the nature, amount, timing and uncertainty of revenue and cash flows can differ between domestic and international customers.

	Three months ended March 31,
Net sales by geographic region:	2018				2017
United States	$	62,107			$	56,423
International	3,813				4,151
Total net sales	$	65,920			$	60,574

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- References

No definition available.

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

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