Consolidated Statement of Shareholders' Equity - USD ($)	Total	Common Stock [Member]	Warrant [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit
Stock Issued During Period, Value, Acquisitions	$ 0
Common Stock, Shares, Outstanding period beginning at Feb. 02, 2013		49,139,361
Total Shareholders' Equity period beginning at Feb. 02, 2013	77,279,000	$ 491,000	$ 533,000	$ 407,244,000	$ (330,989,000)
Net loss	(2,515,000)	$ 0	0	0	(2,515,000)
Common stock issuances pursuant to equity compensation plans, Shares		704,892
Common stock issuances pursuant to equity compensation plans, Value	227,000	$ 7,000	0	220,000	0
Share-based compensation		0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	3,217,000	$ 0	0	3,217,000	0
Common Stock, Shares, Outstanding period end at Feb. 01, 2014		49,844,253
Total Shareholders' Equity period end at Feb. 01, 2014	78,208,000	$ 498,000	533,000	410,681,000	(333,504,000)
Debt Conversion, Converted Instrument, Warrants or Options Issued		5,058,741
Adjustments to Additional Paid in Capital, Warrant Issued	0	$ 51,000		482,000	0
Stock Issued During Period, Shares, Acquisitions		178,842
Stock Issued During Period, Value, Acquisitions	1,044,000	$ 2,000	0	1,042,000	0
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants			(533,000)
Net loss	(1,378,000)	$ 0	0	0	(1,378,000)
Common stock issuances pursuant to equity compensation plans, Shares		1,366,827
Common stock issuances pursuant to equity compensation plans, Value	2,794,000	$ 13,000	0	2,781,000	0
Share-based compensation		0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	3,860,000	$ 0	0	3,860,000	0
Common Stock, Shares, Outstanding period end at Jan. 31, 2015		56,448,663
Total Shareholders' Equity period end at Jan. 31, 2015	84,528,000	$ 564,000	0	418,846,000	(334,882,000)
Stock Issued During Period, Value, Acquisitions	0
Net loss	(12,284,000)	$ 0	0	0	(12,284,000)
Share-based compensation		0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	2,275,000	$ 0	0	2,275,000	0
Common Stock, Shares, Outstanding period end at Jan. 30, 2016		57,170,245
Total Shareholders' Equity period end at Jan. 30, 2016	76,979,000	$ 571,000	0	423,574,000	(347,166,000)
Stock Issued During Period, Shares, New Issues		721,582
Stock Issued During Period, Value, New Issues	$ 2,460,000	$ 7,000	$ 0	$ 2,453,000	$ 0