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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Goodwill) (Details)
$ in Thousands
9 Months Ended
May 31, 2018
USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Beginning balance $ 35,642
Foreign currency exchange rate changes (324)
Aeropost acquisition - see Note 8 16,033
Ending balance $ 51,351