Available-For-Sale Securities - Classified As Current Assets (Narrative) (Details) (USD $)	12 Months Ended
	May 31, 2014	Jun. 01, 2013	Jun. 02, 2012
Available-For-Sale Securities - Classified As Current Assets [Abstract]
Proceeds from sale of available-for-sale securities	$ 108,100,000	$ 188,100,000	$ 115,800,000
Gross realized gains on sales of available-for-sale securities	8,000	24,000	24,000
Gross realized losses on sales of available-for-sale securities	2,000	676,000	825,000
Unrealized holding gains (losses) net of tax on available-for-sale securities	149,000	256,000	98,000
Unrealized gain on long term available for sale securities in other comprehensive income	$ 90,000	$ 186,000