General (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Aug. 29, 2013		Aug. 30, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Balance, Swap Agreements	$ 18		$ (58)
Other comprehensive income (loss) before reclassifications, Swap Agreements	241		0
Amounts reclassified from accumulated other comprehensive loss, Swap Agreements	27	[1]	17	[1]
Net other comprehensive income (loss), Swap Agreements	268		17
Balance, Swap Agreements	286		(41)
Balance, Available for Sale Investments	(10)		(8)
Other comprehensive income (loss) before reclassifications, Available for Sale Investments	(1)		0
Amounts reclassified from accumulated other comprehensive loss, Available for Sale Investments	0	[1]	0	[1]
Net other comprehensive income (loss), Available for Sale Investments	(1)		0
Balance, Available for Sale Investments	(11)		(8)
Balance, Pension Obligation	(3,836)		(4,073)
Other comprehensive income (loss) before reclassifications, Pension Obligation	0		0
Amounts reclassified from accumulated other comprehensive loss, Pension Obligation	0	[1]	0	[1]
Net other comprehensive income (loss), Pension Obligation	0		0
Balance, Pension Obligation	(3,836)		(4,073)
Balance, Accumulated Other Comprehensive Loss	(3,828)		(4,139)
Other comprehensive income (loss) before reclassifications, Accumulated Other Comprehensive Loss	240		0
Amounts reclassified from accumulated other comprehensive loss, Accumulated Other Comprehensive Loss	27	[1]	17	[1]
Net other comprehensive income (loss), Accumulated Other Comprehensive Loss	267		17
Balance, Accumulated Other Comprehensive Loss	$ (3,561)		$ (4,122)

[1] Amounts are included in interest expense in the consolidated statements of comprehensive income.