DEBT - Short-term (Details) (USD $)	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Line of Credit Facility [Line Items]
Total Amount of Facilities	$ 61,869,000	$ 35,863,000
Facilities Available	61,433,000	35,275,000
Line of Credit Facility, Increase (Decrease), Net	15,000,000
Short-term Borrowings
Line of Credit Facility [Line Items]
Facilities Used	0	0
Letters of Credit
Line of Credit Facility [Line Items]
Facilities Used	436,000	588,000
Colombia Subsidiary [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 10,900,000