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Nature Of Operations And Summary Of Significant Accounting Policies (Accrued Liabilities) (Details) - USD ($)
$ in Thousands
Aug. 31, 2016
Aug. 31, 2015
Nature Of Operations And Summary Of Significant Accounting Policies [Abstract]    
Accrued compensation $ 8,810 $ 8,622
Other accrued liabilities 8,608 8,260
Accrued liabilities $ 17,418 $ 16,882