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Note 12 - Geographic and Segment Information (Details) - Operating Income by Geographic Distribution (USD $)	3 Months Ended						12 Months Ended		15 Months Ended
	Aug. 31, 2014	May 31, 2014	Feb. 28, 2014	Aug. 31, 2013	May 31, 2013	Feb. 28, 2013	Aug. 31, 2014	Aug. 31, 2013	Nov. 30, 2014	Nov. 30, 2013
Segment Reporting Information [Line Items]
Net Sales	$ 7,377,180	$ 6,920,820	$ 6,219,008	$ 6,086,734	$ 5,877,033	$ 5,246,350	$ 26,826,108	$ 22,501,864	$ 6,309,100	$ 5,291,747
Operating Income							6,694,386	4,964,976
Brazil [Member]
Segment Reporting Information [Line Items]
Net Sales							3,079,695	2,394,486
Operating Income							231,054	(273,246)
INDIA
Segment Reporting Information [Line Items]
Net Sales							581,535
Operating Income							15,132
North America [Member]
Segment Reporting Information [Line Items]
Net Sales							23,164,878	20,107,378
Operating Income							$ 6,448,200	$ 5,238,222

X

- Definition

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

+ References

No definition available.

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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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