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Note 12 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution (USD $) | 3 Months Ended | 6 Months Ended
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Feb. 28, 2015 | Feb. 28, 2014 | Feb. 28, 2015 | Feb. 28, 2014
Note 12 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items] |  |  |  |
Total net sales | $ 6,728,709 us-gaap_SalesRevenueNet | $ 6,219,008 us-gaap_SalesRevenueNet | $ 13,942,804 us-gaap_SalesRevenueNet | $ 12,528,108 us-gaap_SalesRevenueNet
BRAZIL |  |  |  |
Note 12 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items] |  |  |  |
Total net sales |  |  | 1,418,236 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_BR | 1,153,012 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_BR
CHINA |  |  |  |
Note 12 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items] |  |  |  |
Total net sales |  |  | 20,732 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_CN |
INDIA |  |  |  |
Note 12 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items] |  |  |  |
Total net sales |  |  | 416,772 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_IN | 168,779 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_IN
North America [Member] |  |  |  |
Note 12 - Geographic and Segment Information (Details) - Total Net Sales by Geographic Distribution [Line Items] |  |  |  |
Total net sales |  |  | $ 12,087,064 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember | $ 11,206,317 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember

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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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