Note J - Employee Post-Employment Benefits (Details) - Components of Net Periodic Benefit Cost (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Mar. 04, 2014		Mar. 05, 2013		Mar. 04, 2014		Mar. 05, 2013
Note J - Employee Post-Employment Benefits (Details) - Components of Net Periodic Benefit Cost [Line Items]
Amortization of prior service cost (a)	$ 12		$ (13)		$ 34		$ (38)
Recognized actuarial loss	489		618		1,466		1,854
Pension Benefits [Member]
Note J - Employee Post-Employment Benefits (Details) - Components of Net Periodic Benefit Cost [Line Items]
Service cost	89		115		267		345
Interest cost	435		525		1,303		1,575
Expected return on plan assets	(111)		(102)		(333)		(306)
Amortization of prior service cost (a)		[1]	26	[1]		[1]	78	[1]
Recognized actuarial loss	427		565		1,283		1,695
Net periodic benefit cost	840		1,129		2,520		3,387
Postretirement Medical and Life Benefits [Member]
Note J - Employee Post-Employment Benefits (Details) - Components of Net Periodic Benefit Cost [Line Items]
Service cost	4		3		10		9
Interest cost	16		15		50		45
Amortization of prior service cost (a)	(12)	[1]	(14)	[1]	(34)	[1]	(41)	[1]
Recognized actuarial loss	61		53		183		159
Net periodic benefit cost	$ 69		$ 57		$ 209		$ 172

[1] Prior service costs are amortized on a straight-line basis over the average remaining service period of employees expected to receive benefits.