Summary of Significant Accounting Policies (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended																12 Months Ended
	Feb. 03, 2018	[1],[2]	Oct. 28, 2017		Jul. 29, 2017		Apr. 29, 2017		Jan. 28, 2017	[3]	Oct. 29, 2016		Jul. 30, 2016		Apr. 30, 2016		Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Basic Earnings per Share:
Net income	$ (3,891)		$ 10,697		$ 3,896		$ 8,231		$ (920)		$ 9,672		$ 4,104		$ 10,661		$ 18,933	$ 23,517	$ 28,767
Amount allocated to participating securities																	(250)	(487)	(566)
Net income available for basic common shares and basic earnings per share																	$ 18,683	$ 23,030	$ 28,201
Net income available for basic common shares and basic earnings per share, Shares																	16,220	18,017	19,417
Net income per share - Basic	$ (0.24)	[4]	$ 0.66	[4]	$ 0.24	[4]	$ 0.48	[4]	$ (0.05)	[4]	$ 0.54	[4]	$ 0.22	[4]	$ 0.56	[4]	$ 1.15	$ 1.28	$ 1.45
Diluted Earnings per Share:
Net income	$ (3,891)		$ 10,697		$ 3,896		$ 8,231		$ (920)		$ 9,672		$ 4,104		$ 10,661		$ 18,933	$ 23,517	$ 28,767
Amount allocated to participating securities																	(250)	(487)	(566)
Adjustment for dilutive potential common shares																	$ 0	$ 0	$ 0
Adjustment for dilutive potential common shares, Shares																	7	5	10
Net income available for diluted common shares and diluted earnings per share																	$ 18,683	$ 23,030	$ 28,201
Net income available for diluted common shares and diluted earnings per share, Shares																	16,227	18,022	19,427
Net income per share - Diluted	$ (0.24)	[4]	$ 0.66	[4]	$ 0.24	[4]	$ 0.48	[4]	$ (0.05)	[4]	$ 0.54	[4]	$ 0.22	[4]	$ 0.56	[4]	$ 1.15	$ 1.28	$ 1.45

[1] Our gross profit, operating income and net loss for the fourth quarter of fiscal 2017 were impacted by the following items recorded in such quarter: gain on insurance proceeds related to hurricane affected stores of $3.3 million, or $0.13 per diluted share, net of tax, non-cash impairment charges for underperforming stores of $3.4 million, or $0.13 per diluted share, net of tax, additional stock-based compensation expense resulting from the enactment of the Tax Act and its impact on the anticipated vesting of outstanding performance-based restricted stock of $1.9 million, or $0.08 per diluted share, net of tax, and additional income tax expense resulting from the enactment of the Tax Act and our remeasurement of deferred tax assets and liabilities of $4.4 million, or $0.27 per diluted share.

[2] The fourth quarter of fiscal 2017 consisted of 14 weeks compared with 13 weeks in the comparable prior year period.

[3] Our gross profit, operating income and net loss for the fourth quarter of fiscal 2016 were impacted by non-cash impairment charges related to certain underperforming stores in Puerto Rico of $3.6 million, or $0.12 per diluted share, net of tax, recorded in such quarter.

[4] 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.