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Credit Arrangements (Schedule Of Principal Payments Due On Debt) (Details) - USD ($)
$ in Thousands
Nov. 30, 2015
Aug. 31, 2015
Nov. 30, 2014
Credit Arrangements [Abstract]      
1 year $ 194    
2 years 198    
3 years 202    
4 years 206    
5 years 210    
Thereafter 116,308    
Total debt $ 117,318 $ 117,366