Note 6 - Long-term Debt and Capital Leases - Long-Term Debt and Capital Lease Obligations (Details) - USD ($)	May 31, 2016	Jun. 02, 2015	May 14, 2012
Senior Notes [Member]
Senior unsecured notes	$ 212,546,000	$ 215,000,000
Unamortized discount	(1,771,000)	(2,162,000)	$ (3,700,000)
Unamortized debt issuance costs	(2,995,000)	(3,656,000)
Senior unsecured notes less unamortized discount and debt issuance costs	207,780,000	209,182,000
Unamortized debt issuance costs	(74,000)	(283,000)
Mortgage loan obligations	15,745,000	31,607,000
Unamortized premium - mortgage loan obligations	75,000	383,000
Capital lease obligations	211,000	206,000
Total long-term debt and capital leases	223,737,000	241,095,000
Less current maturities	9,934,000	10,078,000
Long-term debt and capital leases, less current maturities	$ 213,803,000	$ 231,017,000