Earnings per Share - Potential Common Stock Equivalents Excluded From Computation of Diluted Earning Per Share (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	700	558	560	534
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	183	1,522	1,214	1,480
Range of exercise prices of such options, minimum	$ 5.27	$ 4.96	$ 4.96	$ 4.96
Range of exercise prices of such options, maximum	$ 7.52	$ 7.52	$ 7.52	$ 7.52
Restricted Stock (time-vested)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares			15