Supplemental Executive Retirement Plan (Details) (USD $)	3 Months Ended		12 Months Ended
	May 03, 2014	May 04, 2013	Feb. 01, 2014
Supplemental Executive Retirement Plan
Impact of plan amendment on projected benefit obligation and unrecognized prior service cost			$ 4,500,000
Components of net periodic pension cost
Interest cost	572,000	586,000
Net amortization of unrecognized prior service (credit) cost	(58,000)	155,000
Net amortization of actuarial losses	234,000	277,000
Net periodic defined benefit pension cost	748,000	1,018,000
Other income/expense
Supplemental Executive Retirement Plan
Gain as a result of the change in value of the insurance policy investments, included in other income and expense	1,600,000	1,500,000
Other assets
Supplemental Executive Retirement Plan
Cash surrender values of the insurance policies held in a rabbi trust	$ 53,000,000		$ 51,400,000