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Segment Reporting - Sales By Geographic Regions (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Aug. 31, 2014 | Aug. 31, 2013 | Aug. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Sales Revenue, Goods, Net | $ 42,302 | $ 44,149 | $ 40,301
North America |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Sales Revenue, Goods, Net | 37,947 | 39,918 | 37,503
South America |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Sales Revenue, Goods, Net | 2,119 | 2,511 | 1,444
Europe |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Sales Revenue, Goods, Net | 1,594 | 1,040 | 1,064
Asia Pacific [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Sales Revenue, Goods, Net | $ 642 | $ 680 | $ 290

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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and 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(a)) -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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