Net Income (Loss) Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Earnings Per Share [Abstract]
Net loss	$ (19,355)	$ (23,760)
Weighted average common shares outstanding during the period (for basic calculation) (in shares)	30,538,000	30,428,000
Dilutive effect of other potential common shares (in shares)	0	0
Weighted average common shares and potential common shares (for diluted calculation) (in shares)	30,538,000	30,428,000
Net loss per share - Basic (in dollars per share)	$ (0.63)	$ (0.78)
Net loss per share - Diluted (in dollars per share)	$ (0.63)	$ (0.78)
Stock options, RSUs and shares to be purchased under our ESPP excluded from computation of earnings per share, amount (in shares)	2,100,000	1,600,000