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Sales by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Revenue, Major Customer [Line Items]
Sales revenue	$ 9,585	$ 7,316	$ 29,146	$ 19,229
United States
Revenue, Major Customer [Line Items]
Sales revenue	9,259	6,908	28,030	18,118
Canada
Revenue, Major Customer [Line Items]
Sales revenue	159	173	439	476
Israel
Revenue, Major Customer [Line Items]
Sales revenue	62	120	210	237
Mexico
Revenue, Major Customer [Line Items]
Sales revenue	55	89	333	323
All Other
Revenue, Major Customer [Line Items]
Sales revenue	50	26	134	75
Foreign Countries, total
Revenue, Major Customer [Line Items]
Sales revenue	$ 326	$ 408	$ 1,116	$ 1,111

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X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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