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Sales by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Revenue, Major Customer [Line Items]
Sales revenue	$ 5,536	$ 9,478	$ 17,150	$ 28,220
United States
Revenue, Major Customer [Line Items]
Sales revenue	5,148	9,152	15,897	27,104
Canada
Revenue, Major Customer [Line Items]
Sales revenue	91	159	310	439
Israel
Revenue, Major Customer [Line Items]
Sales revenue	65	62	287	210
Mexico
Revenue, Major Customer [Line Items]
Sales revenue	132	55	390	333
All other
Revenue, Major Customer [Line Items]
Sales revenue	100	50	266	134
Foreign Countries, total
Revenue, Major Customer [Line Items]
Sales revenue	$ 388	$ 326	$ 1,253	$ 1,116

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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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