Legal Proceedings (Details) (USD $)	12 Months Ended
	Feb. 02, 2013 Well Claimant	Jan. 28, 2012	Jan. 29, 2011	Feb. 02, 2008	Dec. 14, 2007
Legal Proceedings (Textual) [Abstract]
Minimum estimated undiscounted costs of preparing RIFS for remedial alternatives	$ 0
Maximum estimated undiscounted costs of preparing RIFS for remedial alternatives	24,000,000
Present worth for remedy of a combination of groundwater extraction and treatment and in-site chemical oxidation	10,700,000
Public Water Supply Wells	2
Minimum historical cost associated with enhanced treatment required by the impact of groundwater plume	1,800,000
Maximum historical cost associated with enhanced treatment required by the impact of groundwater plume	2,500,000
Future operation and maintenance costs	126,400
Minimum amount of complaint under number of state law theories					41,000,000
Period of complaint under number of state law theories				70 years
Number of claimants	2
Amount related to outstanding environmental contingencies	11,900,000	13,000,000	15,500,000
Pretax accruals for environmental contingencies included in provision for discontinued operations	$ 800,000	$ 1,800,000	$ 2,900,000