Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	3 Months Ended
	Aug. 27, 2011	Aug. 28, 2010
Operating activities:
Net income including noncontrolling interest	$ 3,054	$ 4,554
Depreciation and amortization	7,658	7,857
Other adjustments, net	(4,421)	(10,719)
Net cash provided by operations	6,291	1,692
Investing activities:
Purchase of investments	(14,883)	(39,191)
Sales of investments	39,327	51,251
Purchases of property, plant and equipment	(5,005)	(6,473)
Payments received on notes receivable and from affiliates	4,120	1,606
Increase in notes receivable and investments in affiliates		(516)
Net proceeds from disposal of property, plant and equipment	9	9
Net cash provided by investing activities	23,568	6,686
Financing activities:
Proceeds from issuance of common stock from treasury (including tax benefit on nonqualifying disposition of incentive stock options)	203	71
Principal payments on long-term debt	(2,762)	(18,441)
Payments of dividends	(2,435)	(7,009)
Net cash used in financing activities	(4,994)	(25,379)
Net change in cash and cash equivalents	24,865	(17,001)
Cash and cash equivalents at beginning of period	57,679	99,453
Cash and cash equivalents at end of period	$ 82,544	$ 82,452