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Sales by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Revenue, Major Customer [Line Items]
Sales revenue	$ 9,162	$ 6,672	$ 19,671	$ 12,231
UNITED STATES
Revenue, Major Customer [Line Items]
Sales revenue	8,832	6,331	18,881	11,521
Canada
Revenue, Major Customer [Line Items]
Sales revenue	132	162	280	304
Israel
Revenue, Major Customer [Line Items]
Sales revenue	51	19	148	117
Mexico
Revenue, Major Customer [Line Items]
Sales revenue	87	139	278	234
All Other
Revenue, Major Customer [Line Items]
Sales revenue	60	21	84	55
Foreign Countries, total
Revenue, Major Customer [Line Items]
Sales revenue	$ 330	$ 341	$ 790	$ 710

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- 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=6880815&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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