Outstanding Stock Options (Details) (USD $)	6 Months Ended
	Aug. 03, 2013	Feb. 02, 2013
2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	2,620,000	2,500,000
Options outstanding, weighted average exercise price	$ 3.75	$ 3.73
Options outstanding, weighted average remaining contractual term	9 years 3 months 18 days
Options outstanding, aggregate intrinsic value	$ 6,087,000
Vested or expected to vest, outstanding	2,579,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 3.76
Vested or expected to vest, outstanding, weighted average remaining contractual term	9 years 3 months 18 days
Vested or expected to vest, outstanding, aggregate intrinsic value	5,950,000
2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	2,136,000	2,098,000
Options outstanding, weighted average exercise price	$ 6.19	$ 6.23
Options outstanding, weighted average remaining contractual term	5 years 4 months 24 days
Options outstanding, aggregate intrinsic value	2,822,000
Vested or expected to vest, outstanding	2,129,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 6.18
Vested or expected to vest, outstanding, weighted average remaining contractual term	5 years 4 months 24 days
Vested or expected to vest, outstanding, aggregate intrinsic value	2,822,000
2001 Omnibus Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	1,152,000	1,169,000
Options outstanding, weighted average exercise price	$ 5.94	$ 5.88
Options outstanding, weighted average remaining contractual term	5 years
Options outstanding, aggregate intrinsic value	1,538,000
Vested or expected to vest, outstanding	1,152,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 5.94
Vested or expected to vest, outstanding, weighted average remaining contractual term	5 years
Vested or expected to vest, outstanding, aggregate intrinsic value	1,538,000
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	508,000	525,000
Options outstanding, weighted average exercise price	$ 4.20	$ 4.12
Options outstanding, weighted average remaining contractual term	6 years 10 months 24 days
Options outstanding, aggregate intrinsic value	977,000
Vested or expected to vest, outstanding	496,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 4.19
Vested or expected to vest, outstanding, weighted average remaining contractual term	6 years 10 months 24 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 955,000