Condensed Consolidated Statement of Shareholders' Equity (USD $)	Total	Common Stock [Member]	Warrant [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit
Total Shareholders' Equity period beginning at Jan. 28, 2012	$ 101,589,000	$ 486,000	$ 567,000	$ 403,849,000	$ (303,313,000)
Common Stock, Shares, Outstanding period beginning at Jan. 28, 2012	48,560,205	48,560,205
Net loss	(16,259,000)	0	0	0	(16,259,000)
Common stock issuances pursuant to equity compensation plans, Shares		379,281
Common stock issuances pursuant to equity compensation plans, Value	84,000	4,000	0	80,000	0
Share-based compensation		0
Share-based compensation	2,403,000	0	0	2,403,000	0
Total Shareholders' Equity period end at Oct. 27, 2012	$ 87,817,000	$ 490,000	$ 567,000	$ 406,332,000	$ (319,572,000)
Common Stock, Shares, Outstanding period end at Oct. 27, 2012	48,925,021	48,939,486