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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 |  |

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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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