Shareholders' Equity - Stock Option Awards - Outstanding Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jul. 29, 2017	Jan. 28, 2017
2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	3,621	2,543
Options outstanding, weighted average exercise price	$ 1.67	$ 2.19
Options outstanding, weighted average remaining contractual term	8 years 10 months 7 days
Options outstanding, aggregate intrinsic value	$ 37
Vested or expected to vest, outstanding	3,185
Vested or expected to vest, outstanding, weighted average exercise price	$ 1.71
Vested or expected to vest, outstanding, weighted average remaining contractual term	8 years 4 months 10 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 34
2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	291	301
Options outstanding, weighted average exercise price	$ 5.43	$ 5.41
Options outstanding, weighted average remaining contractual term	2 years 8 months
Options outstanding, aggregate intrinsic value	$ 0
Vested or expected to vest, outstanding	291
Vested or expected to vest, outstanding, weighted average exercise price	$ 5.43
Vested or expected to vest, outstanding, weighted average remaining contractual term	2 years 8 months
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 0
2001 Omnibus Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	0	77
Options outstanding, weighted average exercise price	$ 0.00	$ 10.73
Options outstanding, weighted average remaining contractual term	0 years
Options outstanding, aggregate intrinsic value	$ 0
Vested or expected to vest, outstanding	0
Vested or expected to vest, outstanding, weighted average exercise price	$ 0.00
Vested or expected to vest, outstanding, weighted average remaining contractual term	0 years
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 0