Sales by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Revenue, Major Customer [Line Items]
Sales revenue	$ 23,115	$ 36,625
United States
Revenue, Major Customer [Line Items]
Sales revenue	21,452	35,115
Canada
Revenue, Major Customer [Line Items]
Sales revenue	531	638
Israel
Revenue, Major Customer [Line Items]
Sales revenue	321	289
Mexico
Revenue, Major Customer [Line Items]
Sales revenue	527	413
All other
Revenue, Major Customer [Line Items]
Sales revenue	284	170
Foreign Countries, total
Revenue, Major Customer [Line Items]
Sales revenue	$ 1,663	$ 1,510