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DEBT (Schedule of Short-Term Borrowings) (Details) - USD ($)
$ in Thousands
Aug. 31, 2016
Aug. 31, 2015
Short-term Debt [Line Items]    
Total Amount of Facilities $ 65,000 $ 57,691
Facilities Available $ 39,242 $ 50,357
Short-term Borrowings Letters Of Credit Facilities Available [Member]    
Short-term Debt [Line Items]    
Weighted average interest rate 10.10% [1] 5.90%
Short-term Borrowings [Member]    
Short-term Debt [Line Items]    
Line of credit, Current $ 16,534 $ 6,606
Letters Of Credit [Member]    
Short-term Debt [Line Items]    
Line of credit, Current $ 9,224 $ 728
[1] Increased from prior year due to an increase in the loan rate in the Company's Colombia Subsidiary