Outstanding Stock Options (Details) - USD ($)	9 Months Ended
	Oct. 31, 2015	Jan. 31, 2015
2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	2,020,000	2,463,000
Options outstanding, weighted average exercise price	$ 4.24	$ 4.09
Options outstanding, weighted average remaining contractual term	7 years 7 months 10 days
Options outstanding, aggregate intrinsic value	$ 62,000
Vested or expected to vest, outstanding	1,976,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 4.22
Vested or expected to vest, outstanding, weighted average remaining contractual term	7 years 6 months 30 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 60,000
2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	773,000	1,206,000
Options outstanding, weighted average exercise price	$ 6.21	$ 6.71
Options outstanding, weighted average remaining contractual term	3 years 3 months 7 days
Options outstanding, aggregate intrinsic value	$ 11,000
Vested or expected to vest, outstanding	772,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 6.22
Vested or expected to vest, outstanding, weighted average remaining contractual term	3 years 3 months 3 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 11,000
2001 Omnibus Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	404,000	826,000
Options outstanding, weighted average exercise price	$ 7.81	$ 6.89
Options outstanding, weighted average remaining contractual term	2 years 5 months 20 days
Options outstanding, aggregate intrinsic value	$ 0
Vested or expected to vest, outstanding	404,000
Vested or expected to vest, outstanding, weighted average exercise price	$ 7.81
Vested or expected to vest, outstanding, weighted average remaining contractual term	2 years 5 months 20 days
Vested or expected to vest, outstanding, aggregate intrinsic value	$ 0
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	0	450,000
Options outstanding, weighted average exercise price	$ 0.00	$ 4.51
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