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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Goodwill) (Details)
$ in Thousands
12 Months Ended
Aug. 31, 2018
USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Beginning balance $ 35,642
Foreign currency exchange rate changes (543)
Aeropost acquisition - see Note 15 11,230
Ending balance $ 46,329