Revolving Credit Facility (Narrative) (Details) - USD ($)	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Line of Credit Facility [Line Items]
Interest expense, net	$ 1,000,000	$ 1,000,000	$ 1,000,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit agreement start date	May 19, 2016
Revolving credit facility	$ 400,000,000
Revolving credit facility maturity date	May 19, 2021
Incremental facility available for credit facility	$ 200,000,000
Credit facility, covenant description	The Company is not required to comply with any financial covenants unless certain events of default have occurred and are continuing, or if availability under the 2016 Credit Agreement does not exceed the greater of $40 million and 10 percent of the Loan Cap (as defined in the 2016 Credit Agreement). There are no restrictions relating to the payment of dividends and share repurchases as long as no default or event of default has occurred and the aggregate principal amount of unused commitments under the 2016 Credit Agreement is not less than 15 percent of the lesser of the aggregate amount of the commitments and the Borrowing Base, determined as of the preceding fiscal month and on a proforma basis for the following six fiscal months.
Fees paid for the credit facility	$ 2,000,000
Deferred financing fees, unamortized balance	$ 2,000,000
Facility fees on unused portion of credit facility	0.20%	0.25%
Revolving Credit Facility [Member] | Restated 2011 Credit Agreement Member
Line of Credit Facility [Line Items]
Facility fees on unused portion of credit facility	0.25%
Revolving Credit Facility [Member] | 2016 Credit Agreement Member
Line of Credit Facility [Line Items]
Facility fees on unused portion of credit facility	0.20%
Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Credit facility, availability percentage as the lesser of Aggregate Commitments and Borrowing Base	15.00%
Minimum threshold of availability under the credit agreement before the company needs to comply with financial covenants	$ 40,000,000
Minimum percentage threshold of credit availability to Loan Cap before the company needs to comply with financial covenants	10.00%
Federal Funds Rate [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Debt, basis spread on variable rate	0.375%
Federal Funds Rate [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Debt, basis spread on variable rate	0.125%
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Debt, basis spread on variable rate	1.375%
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Debt, basis spread on variable rate	1.125%