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Business Segments And Foreign Operations (Net Sales And Long-Lived Assets By Geographical Area) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Aug. 31, 2013 | Aug. 31, 2012 | Aug. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales | $ 368,548 |  | $ 342,784 |  | $ 336,409 |
Long-Lived Assets | 8,535 |  | 9,063 |  | 8,482 |
UNITED STATES |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales | 145,233 |  | 144,052 |  | 135,025 |
Long-Lived Assets | 4,223 | [1] | 5,297 | [1] | 5,232 | [1]
UNITED KINGDOM |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales | 26,298 |  | 23,402 |  | 26,188 |
GERMANY |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales | 26,671 | [2] | 21,092 | [2] | 26,865 | [2]
Latin America [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales | 19,200 |  | 17,689 |  | 18,720 |
Other International [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales | 151,146 |  | 136,549 |  | 129,611 |
Long-Lived Assets | $ 4,312 | [1] | $ 3,766 | [1] | $ 3,250 | [1]
[1] | Includes tangible assets or property and equipment, net, attributed to the geographic location in which such assets are located.
[2] | Represents net sales from the Germanics sales region which includes Germany, Austria, Denmark, Switzerland and the Netherlands.

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- Definition Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 12 -Paragraph 5 -Subparagraph b, c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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