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Note 11 - Geographic And Segment Information (Detail) - Operating income by geographic distribution: (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 28, 2013 | Feb. 29, 2012 | Feb. 28, 2013 | Feb. 29, 2012
Net sales | $ 5,246,350 | $ 4,974,328 | $ 10,538,097 | $ 9,806,442
Operating income | 969,855 | 691,819 | 1,843,519 | 1,724,321
Brazil [Member] |  |  |  |
Net sales |  |  | 1,131,469 | 1,216,532
Operating income |  |  | (106,759) | (173,651)
North America [Member] |  |  |  |
Net sales |  |  | 9,406,628 | 8,589,910
Operating income |  |  | $ 1,950,278 | $ 1,897,972

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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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 + Details
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