Stockholders' Equity (Stock Options Outstanding And Exercisable) (Details) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2015
$11.47 to $13.77 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding and exercisable, Number of shares	116
Options outstanding and exercisable, Remaining life	0 years 11 months 22 days
Options outstanding and exercisable, Exercise price	$ 13.28
Exercise price range, lower range limit	$ 11.47
Exercise price range, upper range limit	$ 13.77
$13.84 to $13.89 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding and exercisable, Number of shares	56
Options outstanding and exercisable, Remaining life	0 years 3 months 14 days
Options outstanding and exercisable, Exercise price	$ 13.85
Exercise price range, lower range limit	$ 13.84
Exercise price range, upper range limit	$ 13.89
$13.91 to $13.91 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding and exercisable, Number of shares	185
Options outstanding and exercisable, Remaining life	1 year 1 month 9 days
Options outstanding and exercisable, Exercise price	$ 13.91
Exercise price range, lower range limit	$ 13.91
Exercise price range, upper range limit	$ 13.91
$13.92 to $14.65 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding and exercisable, Number of shares	106
Options outstanding and exercisable, Remaining life	0 years 6 months 7 days
Options outstanding and exercisable, Exercise price	$ 14.32
Exercise price range, lower range limit	$ 13.92
Exercise price range, upper range limit	$ 14.65
$14.70 to $16.39 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding and exercisable, Number of shares	56
Options outstanding and exercisable, Remaining life	2 years 2 months 8 days
Options outstanding and exercisable, Exercise price	$ 16.22
Exercise price range, lower range limit	$ 14.7
Exercise price range, upper range limit	$ 16.39
$11.47 to $16.39 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding and exercisable, Number of shares	519
Options outstanding and exercisable, Remaining life	0 years 11 months 26 days
Options outstanding and exercisable, Exercise price	$ 14.09
Exercise price range, lower range limit	$ 11.47
Exercise price range, upper range limit	$ 16.39