Components of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014	Oct. 31, 2013
Intangible Assets [Line Items]
Amortizable intangible assets, net	$ 1,241	$ 1,407
Non-amortizable intangible assets, trade marks	410	410
Non-compete agreements (estimated life 5 years)
Intangible Assets [Line Items]
Amortizable intangible assets, gross	200	200
Amortizable intangible assets, accumulated amortization	(125)	(95)
Amortizable intangible assets, net	75	105
Customer relationships (estimated life 9.6 years)
Intangible Assets [Line Items]
Amortizable intangible assets, gross	1,730	1,730
Amortizable intangible assets, accumulated amortization	(564)	(428)
Amortizable intangible assets, net	$ 1,166	$ 1,302