Summary of Significant Accounting Policies (Schedule of Net Income per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended																12 Months Ended
	Feb. 01, 2020		Nov. 02, 2019		Aug. 03, 2019		May 04, 2019		Feb. 02, 2019		Nov. 03, 2018		Aug. 04, 2018		May 05, 2018		Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Basic Net Income per Share:
Net income	$ 3,483		$ 13,726		$ 11,832		$ 13,873		$ 1,359		$ 12,046		$ 11,775		$ 12,955		$ 42,914	$ 38,135	$ 18,933
Amount allocated to participating securities																	(63)	(152)	(250)
Net income available for basic common shares and basic net income per share																	$ 42,851	$ 37,983	$ 18,683
Net income available for diluted common shares and diluted net income per share, Shares																	14,427	15,111	16,220
Net income per share - Basic	$ 0.25	[1]	$ 0.95	[1]	$ 0.81	[1]	$ 0.95	[1]	$ 0.09	[1]	$ 0.80	[1]	$ 0.77	[1]	$ 0.83	[1]	$ 2.97	$ 2.51	$ 1.15
Diluted Net Income per Share:
Net income	$ 3,483		$ 13,726		$ 11,832		$ 13,873		$ 1,359		$ 12,046		$ 11,775		$ 12,955		$ 42,914	$ 38,135	$ 18,933
Amount allocated to participating securities																	(63)	(152)	(250)
Adjustment for dilutive potential common shares																	$ 1	$ 4	$ 0
Adjustment for dilutive potential common shares, Shares																	259	388	7
Net income available for diluted common shares and diluted net income per share																	$ 42,852	$ 37,987	$ 18,683
Net income available for diluted common shares and diluted net income per share, Shares																	14,686	15,499	16,227
Net income per share - Diluted	$ 0.24	[1]	$ 0.94	[1]	$ 0.80	[1]	$ 0.91	[1]	$ 0.09	[1]	$ 0.76	[1]	$ 0.76	[1]	$ 0.83	[1]	$ 2.92	$ 2.45	$ 1.15

[1] Per share amounts are computed independently for each of the quarters presented. The sum of the quarters may not equal the total year due to the impact of changes in weighted shares outstanding and differing applications of earnings under the two-class method.