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Fair Value Of Financial Instruments (Schedule Of Contingent Earn Out Liability) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Fair Value Of Financial Instruments [Abstract]    
Contingent earn out liability at beginning of year $ 2,530 $ 4,109
Increase to (Reduction of) contingent earnout liability 35 (1,579)
Contingent earn out liability at end of year $ 2,565 $ 2,530