Earnings per Share - Potential Common Stock Equivalents Excluded From Computation of Diluted Earning Per Share (Details) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	345		166
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	1,377	1,245	1,377	1,245
Range of exercise prices of such options, minimum	$ 3.16	$ 4.91	$ 3.16	$ 4.91
Range of exercise prices of such options, maximum	$ 7.52	$ 7.52	$ 7.52	$ 7.52
Restricted Stock Units (time-vested)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	1,119	13	1,119	428
Restricted and Deferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	53	7	56	15