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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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- 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 + Details
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