Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	May 05, 2018	Apr. 29, 2017
Basic Earnings per Share:
Net income	$ 12,955	$ 8,231
Amount allocated to participating securities	(65)	(107)
Net income available for basic common shares and basic earnings per share	$ 12,890	$ 8,124
Net income available for basic common shares and basic earnings per share, Shares	15,526	16,814
Net income available for basic common shares and basic earnings per share, Per Share Amount	$ 0.83	$ 0.48
Diluted Earnings per Share:
Net income	$ 12,955	$ 8,231
Amount allocated to participating securities	(65)	(107)
Adjustment for dilutive potential common shares	$ 0	$ 0
Adjustment for dilutive potential common shares, Shares	2	4
Net income available for diluted common shares and diluted earnings per share	$ 12,890	$ 8,124
Net income available for diluted common shares and diluted earnings per share, Shares	15,528	16,818
Net income available for diluted common shares and diluted earnings per share, Per Share Amount	$ 0.83	$ 0.48