Retirement Plan (Details) (USD $)	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011
Components of pension (income) cost [Abstract]
Interest cost	$ 472,000	$ 516,000	$ 1,416,000	$ 1,548,000
Expected return on plan assets	(563,000)	(609,000)	(1,689,000)	(1,828,000)
Net loss amortization	103,000	39,000	310,000	118,000
Net periodic pension (income) cost	12,000	(54,000)	37,000	(162,000)
Company contributions pension plan			$ 100,000