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Note 12 - Geographic And Segment Information (Details) - Operating income by geographic distribution (USD $)	3 Months Ended				12 Months Ended
	Aug. 31, 2013	May 31, 2013	Feb. 28, 2013	Nov. 30, 2012	Aug. 31, 2013	Aug. 31, 2012
Segment Reporting Information [Line Items]
Net Sales	$ 6,086,734	$ 5,877,033	$ 5,246,350	$ 5,291,747	$ 22,501,864	$ 22,781,653
Operating Income					4,964,976	4,569,769
Brazil [Member]
Segment Reporting Information [Line Items]
Net Sales					2,394,486	4,543,982
Operating Income					(273,246)	1,513,891
North America [Member]
Segment Reporting Information [Line Items]
Net Sales					20,107,378	18,237,671
Operating Income					$ 5,238,222	$ 3,055,878

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

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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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X

- Details

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