Income (Loss) Per Common Share (Computations Of Basic And Diluted Income (Loss) Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 30, 2016	May. 02, 2015
Numerator:
Net income	$ 6,758	$ 4,278
Denominator:
Weighted-average common shares outstanding - basic (shares)	54,681,646	54,448,634
Dilutive impact of options and warrants (shares)	283,244	268,512
Weighted average common share outstanding - diluted (shares)	54,964,890	54,717,146
Per common share:
Basic income (loss) per common share (dollars per share)	$ 0.12	$ 0.08
Diluted income (loss) per common share (dollars per share)	$ 0.12	$ 0.08
Retained Earnings [Member]
Numerator:
Net income	$ 6,758	$ 4,278