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Intangible Assets Amortization expense (Detail) (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2013
Finite Lived Intangible Assets Future Amortization Expense [Line Items]  
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months $ 64
2015 81
2016 66
2017 57
2018 56
Thereafter $ 567