BASIS OF PRESENTATION (Details) (USD $) In Thousands	Aug. 30, 2011	May 31, 2011
Accrued liabilities [Abstract]
Taxes, other than income and payroll	$ 14,023	$ 13,695
Payroll and related costs	28,165	27,559
Previously Reported [Member]
Accrued liabilities [Abstract]
Taxes, other than income and payroll		23,425
Payroll and related costs		17,829
Reclassification Adjustment [Member]
Accrued liabilities [Abstract]
Taxes, other than income and payroll		(9,730)
Payroll and related costs		$ 9,730