Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Goodwill [Line Items]
Gross Value	$ 19,450	$ 18,653
Accumulated Amortization	(14,349)	(11,386)
Net Value	5,101	7,267
Customer Relationships [Member]
Goodwill [Line Items]
Gross Value	7,400	6,899
Accumulated Amortization	(4,042)	(3,208)
Net Value	3,358	3,691
Developed Technology [Member]
Goodwill [Line Items]
Gross Value	6,740	6,444
Accumulated Amortization	(5,789)	(5,061)
Net Value	951	1,383
Intellectual Property [Member]
Goodwill [Line Items]
Gross Value	2,340	2,340
Accumulated Amortization	(2,229)	(2,129)
Net Value	111	211
Supply Agreement [Member]
Goodwill [Line Items]
Gross Value	1,400	1,400
Accumulated Amortization	(1,400)	(544)
Net Value		856
License [Member]
Goodwill [Line Items]
Gross Value	500	500
Accumulated Amortization	(403)	(113)
Net Value	97	387
Trade Names [Member]
Goodwill [Line Items]
Gross Value	370	370
Accumulated Amortization	(322)	(285)
Net Value	48	85
Patent [Member]
Goodwill [Line Items]
Gross Value	500	500
Accumulated Amortization	(71)	(20)
Net Value	429	480
Non-compete [Member]
Goodwill [Line Items]
Gross Value	200	200
Accumulated Amortization	(93)	(26)
Net Value	$ 107	$ 174

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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