Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Gain
Beginning Balance (in shares) at Jan. 30, 2021		119,735
Treasury stocks, beginning balance (in shares) at Jan. 30, 2021				41,297
Beginning Balance at Jan. 30, 2021	$ 165,119	$ 1,197	$ 498,488	$ (494,395)	$ 159,765	$ 64
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	17,258				17,258
Unrealized gains (losses) on marketable securities, net of taxes	(54)					(54)
Issuance of common stock (in shares)		3,148
Issuance of common stock	0	$ 32	(32)
Dividends on common stock	54				54
Repurchase of common stock & tax withholdings related to share-based awards (in shares)		(318)
Repurchase of common stock & tax withholdings related to share-based awards	(980)	$ (3)	(977)
Share-based compensation	$ 5,689		5,689
Treasury stocks, ending balance (in shares) at Jul. 31, 2021				41,297
Ending Balance (in shares) at Jul. 31, 2021	122,565	122,565
Ending Balance at Jul. 31, 2021	$ 187,086	$ 1,226	503,168	$ (494,395)	177,077	10
Beginning Balance (in shares) at May. 01, 2021		122,566
Treasury stocks, beginning balance (in shares) at May. 01, 2021				41,297
Beginning Balance at May. 01, 2021	158,282	$ 1,226	500,453	$ (494,395)	150,968	30
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	26,187				26,187
Unrealized gains (losses) on marketable securities, net of taxes	(20)					(20)
Issuance of common stock (in shares)		23
Issuance of common stock	(1)		(1)
Dividends on common stock	(78)				(78)
Repurchase of common stock & tax withholdings related to share-based awards (in shares)		(24)
Repurchase of common stock & tax withholdings related to share-based awards	(158)		(158)
Share-based compensation	$ 2,874		2,874
Treasury stocks, ending balance (in shares) at Jul. 31, 2021				41,297
Ending Balance (in shares) at Jul. 31, 2021	122,565	122,565
Ending Balance at Jul. 31, 2021	$ 187,086	$ 1,226	503,168	$ (494,395)	177,077	10
Beginning Balance (in shares) at Jan. 29, 2022	122,526	122,526
Treasury stocks, beginning balance (in shares) at Jan. 29, 2022				41,297
Beginning Balance at Jan. 29, 2022	$ 221,504	$ 1,225	508,654	$ (494,395)	206,020	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	76,893				76,893
Unrealized gains (losses) on marketable securities, net of taxes	5					5
Issuance of common stock (in shares)		4,255
Issuance of common stock	156	$ 43	113
Dividends on common stock	(3)				(3)
Repurchase of common stock & tax withholdings related to share-based awards (in shares)		(1,597)
Repurchase of common stock & tax withholdings related to share-based awards	(7,835)	$ (16)	(7,819)
Share-based compensation	$ 7,157		7,157
Treasury stocks, ending balance (in shares) at Jul. 30, 2022				41,297
Ending Balance (in shares) at Jul. 30, 2022	125,184	125,184
Ending Balance at Jul. 30, 2022	$ 297,877	$ 1,252	508,105	$ (494,395)	282,910	5
Beginning Balance (in shares) at Apr. 30, 2022		125,161
Treasury stocks, beginning balance (in shares) at Apr. 30, 2022				41,297
Beginning Balance at Apr. 30, 2022	252,778	$ 1,251	504,977	$ (494,395)	240,945	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	41,961				41,961
Unrealized gains (losses) on marketable securities, net of taxes	5					5
Issuance of common stock (in shares)		59
Issuance of common stock	13	$ 1	12
Dividends on common stock	4				4
Repurchase of common stock & tax withholdings related to share-based awards (in shares)		(36)
Repurchase of common stock & tax withholdings related to share-based awards	(177)		(177)
Share-based compensation	$ 3,293		3,293
Treasury stocks, ending balance (in shares) at Jul. 30, 2022				41,297
Ending Balance (in shares) at Jul. 30, 2022	125,184	125,184
Ending Balance at Jul. 30, 2022	$ 297,877	$ 1,252	$ 508,105	$ (494,395)	$ 282,910	$ 5