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Accounts Receivable (Narrative) (Details)
$ in Millions
12 Months Ended
Aug. 31, 2016
USD ($)
Accounts Receivable [Abstract]  
Period of trade accounts receivable past due over, collectibility review 90 days
Account receivable $ 1.8
Note receivable $ 2.9
Notes receivable, term 3 years
Notes receivable, interest rate 5.00%