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Accrued and Other Liabilities - Schedule of Deferred and Other Long-Term Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Feb. 28, 2013
Aug. 31, 2012
Other Long Term Liabilities [Line Items]    
Supplemental employee retirement plan benefits liability $ 562 $ 598
Other income taxes payable 1,291 1,297
Other 153 61
Total $ 2,006 $ 1,956