Investments And Restricted Investments (Maturities Of Investment And Restricted Investment Securities) (Details) (USD $) In Thousands, unless otherwise specified	Feb. 02, 2013	Jan. 28, 2012
Investments and Restricted Investments [Line Items]
Total, Cost basis	$ 10,099	$ 10,934
Fair value	11,000	11,911
Investments [Member]
Investments and Restricted Investments [Line Items]
Maturing in one year or less, Cost basis	1,073
Maturing after one year through five years, Cost basis	2,818
Maturing after five years through ten years, Cost basis	1,100
Total, Cost basis	4,991	5,808
Maturing in one year or less, Estimated fair value	1,087
Maturing after one year through five years, Estimated fair value	3,036
Maturing after five through ten years, Estimated fair value	1,338
Fair value	5,461	6,260
Restricted Investments [Member]
Investments and Restricted Investments [Line Items]
Maturing in one year or less, Cost basis	1,250
Maturing after one year through five years, Cost basis	953
Maturing after five years through ten years, Cost basis	2,905
Total, Cost basis	5,108	5,126
Maturing in one year or less, Estimated fair value	1,275
Maturing after one year through five years, Estimated fair value	1,063
Maturing after five through ten years, Estimated fair value	3,201
Fair value	$ 5,539	$ 5,651