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VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2017
Aug. 31, 2016
Aug. 31, 2015
VALUATION AND QUALIFYING ACCOUNTS [Abstract]      
Balance at Beginning of Period $ 7    
Charged to Costs and Expenses 9 $ 25 $ 10
Deductions (9) (18) $ (10)
Balance at End of Period $ 7 $ 7