Intangible Assets - Summary of Components of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	$ 7,266	$ 7,372
Internal use software [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	3,227	3,109
Less accumulated amortization, net of impairment	(2,818)	(2,701)
Finite-Lived Intangible Assets, Net	409	408
ERP Internal use software [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	4,408	4,397
Less accumulated amortization, net of impairment	(4,279)	(4,242)
Finite-Lived Intangible Assets, Net	129	155
Trademarks, trade names and patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,573	7,253
Less accumulated amortization, net of impairment	(2,606)	(2,424)
Finite-Lived Intangible Assets, Net	4,967	4,829
Product software impairment [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,665	1,494
Less accumulated amortization, net of impairment	(1,127)	(956)
Finite-Lived Intangible Assets, Net	538	538
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,313	5,144
Less accumulated amortization, net of impairment	(4,090)	(3,702)
Finite-Lived Intangible Assets, Net	$ 1,223	$ 1,442