Shareholders' Equity - Stock Option Awards - Outstanding Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	May 05, 2018	Feb. 03, 2018
2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	4,312	3,384
Options outstanding, weighted average exercise price	$ 1.49	$ 1.64
Options outstanding, weighted average remaining contractual term	8 years 6 months 22 days
Options outstanding, aggregate intrinsic value	$ 255
Vested or expected to vest, outstanding	3,929
Vested or expected to vest, outstanding, weighted average exercise price	$ 1.52
Vested or expected to vest, outstanding, weighted average remaining contractual term	8 years 5 months 26 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 215
2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	107	112
Options outstanding, weighted average exercise price	$ 4.87	$ 4.86
Options outstanding, weighted average remaining contractual term	5 years 6 months 1 day
Options outstanding, aggregate intrinsic value	$ 0
Vested or expected to vest, outstanding	107
Vested or expected to vest, outstanding, weighted average exercise price	$ 4.87
Vested or expected to vest, outstanding, weighted average remaining contractual term	5 years 6 months 1 day
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 0