COMMITMENTS AND CONTINGENCIES (Details) (USD $)	9 Months Ended
	May 31, 2014
Loss Contingencies [Line Items]
Document Period End Date	May 31, 2014
Accrual for Taxes Other than Income Taxes, Current	$ 2,900,000
Contractual Obligation	25,400,000
Land under Purchase Options, Recorded	1,300,000
Land under Purchase Options, Not Recorded	31,000,000
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	597,000
Operating Leases, Future Minimum Payments Due, Next Twelve Months	8,720,000	[1]
Operating Leases, Future Minimum Payments, Due in Two Years	8,378,000	[1]
Operating Leases, Future Minimum Payments, Due in Three Years	9,064,000	[1]
Operating Leases, Future Minimum Payments, Due in Four Years	9,409,000	[1]
Operating Leases, Future Minimum Payments, Due in Five Years	9,230,000	[1]
Operating Leases, Future Minimum Payments, Due Thereafter	93,239,000	[1]
Operating Leases, Future Minimum Payments Due	138,040,000	[1],[2]
Distribution Center Services in Mexico [Member]
Loss Contingencies [Line Items]
Long-term Purchase Commitment, Time Period	P3Y
Purchase Commitment, Remaining Minimum Amount Committed	$ 73,000
COLOMBIA
Loss Contingencies [Line Items]
Square Footage of Leased Real Estate Property	126,000
Square Meters of Leased Real Estate Property	11,667
Operating Leases, Term	30 years
Lessee Leasing Arrangements, Operating Leases, Renewal Term	10 years

[1] (1)Operating lease obligations have been reduced by approximately $597,000 to reflect sub-lease income. Certain obligations under leasing arrangements are collateralized by the underlying asset being leased.

[2] (2) On January 30, 2014, the Company entered into a lease agreement for approximately 126,000 usable square feet (11,667 usable square meters) of land in the city of Bogota, Colombia, upon which the Company plans to construct a new warehouse club. The lease term is for 30 years with two options to renew at the Company's discretion for ten years each. The total expected payments under the initial term of this lease are included within the table and makes up part of the total lease commitments. The Company will record the monthly lease expense in pre-opening expenses while the warehouse club is under construction. Upon opening, these expenses will be recognized in warehouse club operations expense.