Fair Value Measurements (Details) (USD $)	3 Months Ended	9 Months Ended		12 Months Ended
	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011	Jan. 28, 2012
Fair Value Measurements [Abstract]
Long-lived assets, gross carrying amount	$ 175,000	$ 1,200,000	$ 712,000	$ 966,000
Long-lived assets, fair value	136,000	772,000	455,000	628,000
Long-lived assets, impairment charges	39,000	350,000	257,000	338,000
Remaining unamortized basis		$ 328,000	$ 84,000	$ 84,000