Consolidated Statement of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit
Common Stock, Shares, Outstanding period beginning at Jan. 30, 2016		57,170,245
Total Shareholders' Equity period beginning at Jan. 30, 2016	$ 76,979	$ 571	$ 423,574	$ (347,166)
Net income (loss)	(8,745)	$ 0	0	(8,745)
Common stock issuances pursuant to equity compensation plans, Shares		423,338
Common stock issuances pursuant to equity compensation plans, Value	(46)	$ 5	(51)	0
Share-based payment compensation	1,946	$ 0	1,946	0
Common stock and warrant issuance, Shares		7,598,731
Common stock and warrant issuance, Value	11,569	$ 76	11,493	0
Common Stock, Shares, Outstanding period end at Jan. 28, 2017		65,192,314
Total Shareholders' Equity period end at Jan. 28, 2017	81,703	$ 652	436,962	(355,911)
Net income (loss)	143	$ 0	0	143
Repurchases of common stock, Shares		(4,400,000)
Repurchases of common stock, Value	(5,055)	$ (44)	(5,011)	0
Common stock issuances pursuant to equity compensation plans, Shares		389,871
Common stock issuances pursuant to equity compensation plans, Value	34	$ 4	30	0
Share-based payment compensation	2,888	$ 0	2,888	0
Common stock and warrant issuance, Shares		4,108,273
Common stock and warrant issuance, Value	$ 4,283	$ 41	4,242	0
Common Stock, Shares, Outstanding period end at Feb. 03, 2018	65,290,458	65,290,458.000
Total Shareholders' Equity period end at Feb. 03, 2018	$ 83,996	$ 653	439,111	(355,768)
Net income (loss)	(22,157)	$ 0	0	(22,157)
Common stock issuances pursuant to equity compensation awards, Shares		2,628,891
Common stock issuances pursuant to equity compensation awards, Value	48	$ 26	22	0
Share-based payment compensation	$ 3,064	$ 0	3,064	0
Common Stock, Shares, Outstanding period end at Feb. 02, 2019	67,919,349	67,919,349.000
Total Shareholders' Equity period end at Feb. 02, 2019	$ 64,951	$ 679	$ 442,197	$ (377,925)