CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Preferred Stock [Member]	Common Stock [Member] USD ($)	Additional Paid-in Capital [Member] USD ($)	Retained Earnings (Accumulated Deficit) [Member] USD ($)
Balance at beginning of period at Jan. 29, 2011	$ 214,334		$ 662	$ 11,593	$ 202,079
Balance at beginning of period, shares at Jan. 29, 2011		0	66,173,397
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock plans	426		4	422
Employee stock plans, shares			438,071
Stock-based compensation	3,176			3,176
Common stock issuance	1,584		9	1,575
Common stock issuance, shares			900,000
Preferred stock issuance		1,000
Net loss	(106,423)				(106,423)
Balance at end of period at Jan. 28, 2012	113,097		675	16,766	95,656
Balance at end of period, shares at Jan. 28, 2012		1,000	67,511,468
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	2,836			2,836
Common stock issuance	501		6	495
Common stock issuance, shares			581,171
Net loss	(52,074)				(52,074)
Balance at end of period at Feb. 02, 2013	64,360		681	20,097	43,582
Balance at end of period, shares at Feb. 02, 2013	68,092,639	1,000	68,092,639
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock plans	(133)		5	(138)
Employee stock plans, shares			499,179
Stock-based compensation	2,643			2,643
Net loss	(48,721)				(48,721)
Balance at end of period at Feb. 01, 2014	$ 18,149		$ 686	$ 22,602	$ (5,139)
Balance at end of period, shares at Feb. 01, 2014	68,591,818	1,000	68,591,818