Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance at Jan. 31, 2015	$ 207	$ 67,389	$ 270,686	$ (7,084)	$ 331,198
Balance, shares at Jan. 31, 2015	20,673			(381)
Stock option exercises		(125)		$ 280	155
Stock option exercises, shares				15
Dividends			(5,145)		(5,145)
Stock-based compensation income tax benefit		120			120
Employee stock purchase plan purchases		20		$ 216	236
Employee stock purchase plan purchases, shares				10
Restricted stock awards	$ (1)	(3,980)		$ 3,981	0
Restricted stock awards, shares	(69)			212
Shares surrendered by employees to pay taxes on restricted stock				$ (86)	(86)
Shares surrendered by employees to pay taxes on restricted stock, shares				(3)
Purchase of common stock for treasury				$ (18,824)	(18,824)
Purchase of common stock for treasury, shares				(809)
Stock-based compensation expense		3,381			3,381
Net income			28,767		28,767
Balance at Jan. 30, 2016	$ 206	66,805	294,308	$ (21,517)	339,802
Balance, shares at Jan. 30, 2016	20,604			(956)
Dividends			(5,184)		(5,184)
Stock-based compensation income tax benefit		3			3
Employee stock purchase plan purchases		(10)		$ 233	223
Employee stock purchase plan purchases, shares				10
Restricted stock awards		(5,072)		$ 5,072	0
Restricted stock awards, shares	(35)			225
Shares surrendered by employees to pay taxes on restricted stock				$ (421)	(421)
Shares surrendered by employees to pay taxes on restricted stock, shares				(16)
Purchase of common stock for treasury				$ (42,604)	(42,604)
Purchase of common stock for treasury, shares				(1,697)
Stock-based compensation expense		3,546			3,546
Net income			23,517		23,517
Balance at Jan. 28, 2017	$ 206	65,272	312,641	$ (59,237)	318,882
Balance, shares at Jan. 28, 2017	20,569			(2,434)
Adoption of Accounting Standards Update No. 2016-09		(188)	188		0
Stock option exercises		(114)		$ 168	54
Stock option exercises, shares				7
Dividends			(5,024)		(5,024)
Employee stock purchase plan purchases		(44)		$ 249	205
Employee stock purchase plan purchases, shares				10
Restricted stock awards	$ (1)	(4,545)		$ 4,546	0
Restricted stock awards, shares	(40)			139
Shares surrendered by employees to pay taxes on restricted stock				$ (1,027)	(1,027)
Shares surrendered by employees to pay taxes on restricted stock, shares				(45)
Purchase of common stock for treasury				$ (29,798)	(29,798)
Purchase of common stock for treasury, shares				(1,259)
Stock-based compensation expense		5,077			5,077
Net income			18,933		18,933
Balance at Feb. 03, 2018	$ 205	$ 65,458	$ 326,738	$ (85,099)	$ 307,302
Balance, shares at Feb. 03, 2018	20,529			(3,582)