Annual report pursuant to Section 13 and 15(d)

Fair Value of Financial Assets and Liabilities Included in Condensed Consolidated Balance Sheet (Detail)

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Fair Value of Financial Assets and Liabilities Included in Condensed Consolidated Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2013
Aug. 31, 2012
Level 1 Valuation
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents $ 1,092 $ 5,154
Investments 1,793 1,602
Level 2 Valuation
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign Currency Contract, Asset, Fair Value Disclosure $ 143 $ 945