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Note 12 - Segment and Geographic Information - Total Net Sales by Geographic Distribution (Details) - USD ($) | 12 Months Ended
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Aug. 31, 2016 | Aug. 31, 2015
CHINA |  |
Total net sales | $ 4,114,288 | $ 1,070,422
BRAZIL |  |
Total net sales | 2,172,297 | 2,623,938
INDIA |  |
Total net sales | 1,104,947 | 967,241
Other Countries [Member] |  |
Total net sales | 5,237,553 | 6,331,113
UNITED STATES |  |
Total net sales | 20,304,480 | 19,329,979
Total net sales | $ 32,933,565 | $ 30,322,693

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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=63488584&loc=d3e20235-122688 + Details
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