COMMITMENTS AND CONTINGENCIES (Schedule of Future Minimum Lease Commitments) (Details) - USD ($)				9 Months Ended
		Nov. 25, 2016	Nov. 24, 2016	May 31, 2017		Aug. 31, 2016
COMMITMENTS AND CONTINGENCIES [Abstract]
2018	[1]			$ 11,006,000
2019	[1]			10,361,000
2020	[1]			9,871,000
2021	[1]			8,689,000
2022	[1]			7,563,000
Thereafter	[1]			88,920,000
Total				136,410,000	[1],[2],[3]	$ 120,900,000
Sub-lease income				1,000,000
Lease expiration date		Nov. 30, 2043	May 31, 2021
Exit obligation, Other long-term liabilities				496,000
Reduction for potential sub-lease income				0
Current exit obligation				$ 282,000

[1] Operating lease obligations have been reduced by approximately $1.0 million to reflect sub-lease income. Certain obligations under leasing arrangements are collateralized by the underlying asset being leased.

[2] As of August 31, 2016, total future minimum lease commitments were $120.9 million. The increase during the period ended May 31, 2017 is primarily related to the extension of an existing lease within the Company's Guatemala subsidiary for its Pradera location. The subsidiary signed an extension on November 25, 2016, extending the lease termination date from May 31, 2021 to November 30, 2043. The lease extension included the real property at this location currently used by the Company and added additional square footage in the same shopping center to the lease. This has effectively provided the Company with possession of substantially all of the real property available at that location. The Company plans to expand and upgrade the current warehouse club and parking areas and to improve access into and out from the location.

[3] Future minimum lease payments include $4.9 million of lease payment obligations for the prior leased Miami distribution center. For the purposes of calculating the minimum lease payments, no reduction was considered for the potential sub-lease income the Company could receive during the remaining lease term. This potential sub-lease income was considered, however, for the purposes of calculating the exit obligation of $282,000 recorded on the balance sheet as of May 31, 2017. Projected income from any executed sub-leases would be used to reduce the amount reported as minimum lease payments.