Note 6 - Long-term Debt and Capital Leases - Long-Term Debt and Capital Lease Obligations (Details) - USD ($)	Mar. 01, 2016	Jun. 02, 2015
Senior Notes [Member]
Senior unsecured notes	$ 212,546,000	$ 215,000,000
Unamortized discount	(1,866,000)	(2,162,000)
Unamortized debt issuance costs	(3,154,000)	(3,656,000)
Senior unsecured notes less unamortized discount and debt issuance costs	207,526,000	209,182,000
Unamortized debt issuance costs	(141,000)	(283,000)
Senior unsecured notes less unamortized discount and debt issuance costs	228,881,000	240,889,000
Mortgage loan obligations	21,335,000	31,607,000
Unamortized premium - mortgage loan obligations	161,000	383,000
Capital lease obligations	200,000	206,000
	229,081,000	241,095,000
Less current maturities	10,964,000	10,078,000
	$ 218,117,000	$ 231,017,000