Shareholders’ Equity and Stock-Based Compensation (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified					12 Months Ended
	May 30, 2013	May 31, 2012	May 26, 2011	May 27, 2010	May 30, 2013 Exercise Price Range 8.52 to 12.71 [Member]	May 30, 2013 Exercise Price Range 12.72 to 17.73 [Member]	May 30, 2013 Exercise Price Range 17.74 to 23.37 [Member]
Options outstanding	1,949	2,006	1,873	1,729	548	1,101	300
Weighted-average exercise price of options outstanding	$ 14.03	$ 13.91	$ 14.31	$ 14.33	$ 10.84	$ 13.95	$ 20.12
Weighted-average remaining contractual life of options outstanding					7 years 2 months 12 days	5 years 7 months 6 days	3 years 7 months 6 days
Options exercisable	1,113	1,122	999		145	668	300
Weighted-average exercise price of options exercisable	$ 15.47	$ 15.13	$ 14.46		$ 11.42	$ 14.26	$ 20.12