Outstanding Stock Options (Details) - USD ($)	6 Months Ended
	Jul. 30, 2016	Jan. 30, 2016
2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	2,072,000	1,555,000
Options outstanding, weighted average exercise price	$ 2.49	$ 4.30
Options outstanding, weighted average remaining contractual term	8 years 6 months
Options outstanding, aggregate intrinsic value	$ 765,000
Vested or expected to vest, outstanding	1,958,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 2.55
Vested or expected to vest, outstanding, weighted average remaining contractual term	8 years 5 months 5 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 693,000
2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	587,000	670,000
Options outstanding, weighted average exercise price	$ 6.07	$ 6.18
Options outstanding, weighted average remaining contractual term	2 years 10 months 21 days
Options outstanding, aggregate intrinsic value	$ 4,200
Vested or expected to vest, outstanding	586,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 6.07
Vested or expected to vest, outstanding, weighted average remaining contractual term	2 years 10 months 19 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 4,200
2001 Omnibus Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	352,000	399,000
Options outstanding, weighted average exercise price	$ 7.33	$ 7.78
Options outstanding, weighted average remaining contractual term	1 year 10 months
Options outstanding, aggregate intrinsic value	$ 0
Vested or expected to vest, outstanding	352,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 7.33
Vested or expected to vest, outstanding, weighted average remaining contractual term	1 year 10 months
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 0