Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member] Series C Preferred Stock [Member]	Preferred Stock [Member] Series D Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member] Series C Preferred Stock [Member]	Treasury Stock [Member] Common Treasury Stock [Member]	Series C Preferred Stock [Member]	Series D Preferred Stock [Member]	Common Treasury Stock [Member]	Total
Beginning and end of period at Jan. 31, 2015	$ 150	$ 120
Beginning of period at May. 03, 2014		240
Series D preferred redeemed		(120)
Beginning of period at May. 03, 2014			$ 504
Stock options exercised				$ 144
End of period at Jan. 31, 2015			$ 504
Beginning of period at May. 03, 2014				42,775
Series D preferred redeemed				(5,791)
Stock-based compensation				212
Stock-based tax benefits				171
End of period at Jan. 31, 2015				37,511
Beginning of period at May. 03, 2014					$ 80,737
Net income					37,129							$ 37,129
Preferred stock dividends and accretion					(238)
End of period at Jan. 31, 2015					117,628
Beginning of period at May. 03, 2014						$ (205)
Cash flow hedges, net of tax						(235)						(235)
End of period at Jan. 31, 2015						(440)
Beginning and end of period at Jan. 31, 2015							$ (5,100)	$ (12,900)
Total Shareholders' Equity at Jan. 31, 2015												137,473
Beginning and end of period at Jan. 31, 2016	$ 150	120
Beginning of period at May. 02, 2015		120							$ 150	$ 120
Beginning of period at May. 02, 2015			504									504
Stock options exercised			1	681
End of period at Jan. 31, 2016			505
Beginning of period at May. 02, 2015				37,759								37,759
Stock-based compensation				182
Stock-based tax benefits				1,027
End of period at Jan. 31, 2016				39,649
Beginning of period at May. 02, 2015					129,773							129,773
Net income					43,661
Preferred stock dividends and accretion					(112)
End of period at Jan. 31, 2016					173,322
Beginning of period at May. 02, 2015						(2,524)						(2,524)
Cash flow hedges, net of tax						(274)
End of period at Jan. 31, 2016						(2,798)
Beginning and end of period at Jan. 31, 2016							$ (5,100)	$ (12,900)
Total Shareholders' Equity at Jan. 31, 2016												192,948
Beginning and end of period at Jan. 30, 2016									150	120
Beginning of period at May. 02, 2015		$ 120							150	$ 120
Beginning of period at May. 02, 2015			$ 504									504
End of period at Jan. 30, 2016												505
Beginning of period at May. 02, 2015				$ 37,759								37,759
End of period at Jan. 30, 2016												39,649
Beginning of period at May. 02, 2015					$ 129,773							129,773
Net income												43,661
End of period at Jan. 30, 2016												173,322
Beginning of period at May. 02, 2015						$ (2,524)						(2,524)
Cash flow hedges, net of tax												(274)
End of period at Jan. 30, 2016												(2,798)
Beginning and end of period at Jan. 30, 2016									$ (5,100)		$ (12,900)
Total Shareholders' Equity at Jan. 30, 2016												$ 192,948