Redeemable Preferred Stock and Warrants (Details) (USD $) In Thousands, except Share data, unless otherwise specified		6 Months Ended
	Aug. 01, 2012	Jun. 30, 2012 Series A Preferred Stock [Member]
Temporary Equity [Line Items]
Carrying Value of Series A Preferred Stock, beginning balance		$ 56,736
Number of Outstanding Series A Preferred Shares, beginning balance		6,000
Liquidation Value of Series A Preferred Stock, beginning balance		69,759
Number of Outstanding Warrants, beginning balance	3,076,923	21,566,245
Weighted Average Exercise Price of Warrants, beginning balance		$ 3.23
Accrued dividends		2,755
Liquidation Value of Series A Preferred Stock, Accrued dividends		4,248
Number of Outstanding Warrants, Accrued dividends		2,056,854
Weighted Average Exercise Price of Warrants, Accrued dividends		$ 2.07
Accretion		972
Carrying Value of Series A Preferred Stock, ending balance		60,463
Number of Outstanding Series A Preferred Shares, ending balance		6,000
Liquidation Value of Series A Preferred Stock, ending balance		$ 74,007
Number of Outstanding Warrants, ending balance	3,076,923	23,623,099
Weighted Average Exercise Price of Warrants, ending balance		$ 3.13