Consolidated Balance Sheets (Parenthetical) (USD $)	May 31, 2012	May 26, 2011
Preferred Stock, par	$ 1	$ 1
Preferred Stock, authorized	1,000,000	1,000,000
Preferred Stock, issued
Cost of Common Stock in treasury, shares	2,298,904	1,453,167
Common Stock:
Common Stock, par	$ 1	$ 1
Common Stock, authorized	50,000,000	50,000,000
Common Stock, issued	22,372,198	22,356,196
Class B Common Stock :
Common Stock, par	$ 1	$ 1
Common Stock, authorized	33,000,000	33,000,000
Common Stock, issued	8,817,315	8,833,317
Common Stock, outstanding	8,817,315	8,833,317