Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]
Balance at Jan. 30, 2016	$ 339,802,000	$ 206,000	$ (21,517,000)	$ 66,805,000	$ 294,308,000
Balance, shares at Jan. 30, 2016		20,604	(956)
Dividends	(5,184,000)				(5,184,000)
Stock-based compensation income tax benefit	3,000			3,000
Employee stock purchase plan purchases	223,000		$ 233,000	(10,000)
Employee stock purchase plan purchases, shares			10
Restricted stock awards	0		$ 5,072,000	(5,072,000)
Restricted stock awards, shares		(35)	225
Shares surrendered by employees to pay taxes on restricted stock	(421,000)		$ (421,000)
Shares surrendered by employees to pay taxes on restricted stock, shares			(16)
Purchase of common stock for Treasury	(42,604,000)		$ (42,604,000)
Purchase of common stock for treasury, shares			(1,697)
Stock-based compensation expense	3,546,000			3,546,000
Net income	23,517,000				23,517,000
Balance at Jan. 28, 2017	318,882,000	$ 206,000	$ (59,237,000)	65,272,000	312,641,000
Balance, shares at Jan. 28, 2017		20,569	(2,434)
Adoption of Accounting Standards Update No. 2016-09	0			(188,000)	188,000
Stock option exercises	54,000		$ 168,000	(114,000)
Stock option exercises, shares			7
Dividends	(5,024,000)				(5,024,000)
Employee stock purchase plan purchases	205,000		$ 249,000	(44,000)
Employee stock purchase plan purchases, shares			10
Restricted stock awards	0	$ (1,000)	$ 4,546,000	(4,545,000)
Restricted stock awards, shares		(40)	139
Shares surrendered by employees to pay taxes on restricted stock	(1,027,000)		$ (1,027,000)
Shares surrendered by employees to pay taxes on restricted stock, shares			(45)
Purchase of common stock for Treasury	(29,798,000)		$ (29,798,000)
Purchase of common stock for treasury, shares			(1,259)
Stock-based compensation expense	5,077,000			5,077,000
Net income	18,933,000				18,933,000
Balance at Feb. 03, 2018	307,302,000	$ 205,000	$ (85,099,000)	65,458,000	326,738,000
Balance, shares at Feb. 03, 2018		20,529	(3,582)
Adoption of Accounting StandardsCodification 606	620,000				620,000
Dividends	(5,050,000)				(5,050,000)
Employee stock purchase plan purchases	177,000		$ 169,000	8,000
Employee stock purchase plan purchases, shares			7
Restricted stock awards	0		$ (543,000)	543,000
Restricted stock awards, shares			(39)
Shares surrendered by employees to pay taxes on restricted stock	(327,000)		$ (327,000)
Shares surrendered by employees to pay taxes on restricted stock, shares			(13)
Purchase of common stock for Treasury	(46,046,000)		$ (46,046,000)
Purchase of common stock for treasury, shares			(1,527)
Stock-based compensation expense	9,622,000			9,622,000
Net income	38,135,000				38,135,000
Balance at Feb. 02, 2019	$ 304,433,000	$ 205,000	$ (131,846,000)	$ 75,631,000	$ 360,443,000
Balance, shares at Feb. 02, 2019		20,529	(5,154)