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Accrued and Other Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2012
Aug. 31, 2011
Accrued liabilities    
Accrued advertising and sales promotion expenses $ 9,963 $ 9,396
Accrued professional services fees 1,006 1,005
Accrued sales taxes 839 1,189
Accrued other taxes 1,243 346
Other 3,441 3,322
Total $ 16,492 $ 15,258