Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017	May 04, 2019	Jan. 30, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cash and cash equivalents	$ 48,254,000	$ 62,944,000	$ 67,021,000	$ 48,254,000	$ 62,944,000		$ 68,814,000
Credit and debit card receivables	5,400,000		8,200,000	5,400,000
Long-lived assets, impairment charges			0	5,100,000	4,500,000
Self-insurance reserves	3,565,000		3,447,000	3,565,000
Advertising expenses			41,200,000	40,100,000	42,900,000
Cumulative effect on retained earnings from adoption of new Accounting Standards			620,000
Increase in retained earnings from pre-tax adjustments in connection with E-commerce revenues			171,000
Revenue recognized breakage for unredeemed gift cards			649,000
Tax impact of adjustments made to retained earnings			200,000
Income tax expense	$ 4,400,000	$ 4,400,000	12,222,000	$ 18,480,000	$ 14,232,000
Impact on income tax benefit			$ 100,000
Scenario, Forecast [Member] | Maximum [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease liabilities						$ 260,000,000
Scenario, Forecast [Member] | Minimum [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease liabilities						$ 240,000,000