Consolidated Statement of Shareholders' Equity - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Retained earnings	Unrestricted stock [Member]
Balance, common stock, shares at Feb. 02, 2019		55,759,048
Balance at Feb. 02, 2019	$ 615,094	$ 557	$ 352,702	$ 261,835
Share-based compensation benefit (in shares)		0
Share-based compensation benefit	2,822		2,822	0
Issuance of unrestricted stock awards (in shares)					307
Issuance of unrestricted stock awards	45		45
Exercise of options to purchase common stock (in shares)		72,365
Exercise of options to purchase common stock	$ 2,247	$ 1	2,246	0
Vesting of restricted and performance-based stock units (in shares)		203,429
Vesting of restricted stock units and performance-based restricted stock units	2,000	2,000
Common Shares Withheld for Taxes		79,256
Common Shares Withheld	$ (9,873)	$ (1)	(9,872)
Net income (loss)	25,662			25,662
Balance, common stock, shares at May. 04, 2019		55,955,893
Balance at May. 04, 2019	635,999	$ 559	347,943	287,497
Balance, common stock, shares at Feb. 02, 2019		55,759,048
Balance at Feb. 02, 2019	615,094	$ 557	352,702	261,835
Net income (loss)	$ 54,493
Balance, common stock, shares at Aug. 03, 2019	55,851,643	55,851,643
Balance at Aug. 03, 2019	$ 651,936	$ 558	335,050	316,328
Balance, common stock, shares at Feb. 02, 2019		55,759,048
Balance at Feb. 02, 2019	$ 615,094	$ 557	352,702	261,835
Repurchase and retirement of common stock (in shares)	(337,552)
Repurchase and retirement of common stock	$ (36,900)
Balance, common stock, shares at Feb. 01, 2020	55,712,067	55,712,067
Balance at Feb. 01, 2020	$ 759,778	$ 557	322,330	436,891
Balance, common stock, shares at May. 04, 2019		55,955,893
Balance at May. 04, 2019	635,999	$ 559	347,943	287,497
Share-based compensation benefit (in shares)		0
Share-based compensation benefit	3,055		3,055
Issuance of unrestricted stock awards (in shares)					411
Issuance of unrestricted stock awards	45		45
Exercise of options to purchase common stock (in shares)		24,688
Exercise of options to purchase common stock	$ 685		685
Vesting of restricted and performance-based stock units (in shares)		17,099
Vesting of restricted stock units and performance-based restricted stock units	0
Common Shares Withheld for Taxes		2,110
Common Shares Withheld	$ (275)		(275)
Stock Issued During Period, Value, Employee Stock Purchase Plan	195		195
Stock Issued During Period, Shares, Employee Stock Purchase Plans		1,847
Repurchase and retirement of common stock (in shares)		(146,185)
Repurchase and retirement of common stock	(16,599)	$ (1)	(16,598)
Net income (loss)	$ 28,831			28,831
Balance, common stock, shares at Aug. 03, 2019	55,851,643	55,851,643
Balance at Aug. 03, 2019	$ 651,936	$ 558	335,050	316,328
Balance, common stock, shares at Feb. 01, 2020	55,712,067	55,712,067
Balance at Feb. 01, 2020	$ 759,778	$ 557	322,330	436,891
Share-based compensation benefit (in shares)		0
Share-based compensation benefit	(3,536)		(3,536)
Exercise of options to purchase common stock (in shares)		2,136
Exercise of options to purchase common stock	$ 65		65
Vesting of restricted and performance-based stock units (in shares)		204,769
Vesting of restricted stock units and performance-based restricted stock units	2,000	2,000
Common Shares Withheld for Taxes		46,532
Common Shares Withheld	$ (3,299)		(3,299)
Repurchase and retirement of common stock (in shares)	(137,023)	(137,023)
Repurchase and retirement of common stock	$ (12,663)	$ (1)	(12,662)
Net income (loss)	(50,582)			(50,582)
Balance, common stock, shares at May. 02, 2020		55,735,417
Balance at May. 02, 2020	$ 689,765	$ 558	302,898	386,309
Balance, common stock, shares at Feb. 01, 2020	55,712,067	55,712,067
Balance at Feb. 01, 2020	$ 759,778	$ 557	322,330	436,891
Exercise of options to purchase common stock (in shares)	85,950
Net income (loss)	$ (21,001)
Balance, common stock, shares at Aug. 01, 2020	55,837,096	55,837,096
Balance at Aug. 01, 2020	$ 723,955	$ 559	307,506	415,890
Balance, common stock, shares at May. 02, 2020		55,735,417
Balance at May. 02, 2020	689,765	$ 558	302,898	386,309
Share-based compensation benefit (in shares)		0
Share-based compensation benefit	2,416		2,416
Issuance of unrestricted stock awards (in shares)		584
Issuance of unrestricted stock awards	64		64
Exercise of options to purchase common stock (in shares)		83,814
Exercise of options to purchase common stock	$ 2,197	$ 1	2,196
Vesting of restricted and performance-based stock units (in shares)		18,030
Vesting of restricted stock units and performance-based restricted stock units	0
Common Shares Withheld for Taxes		2,885
Common Shares Withheld	$ (297)		(297)
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 229		229
Stock Issued During Period, Shares, Employee Stock Purchase Plans		2,136
Repurchase and retirement of common stock (in shares)	0
Net income (loss)	$ 29,581			29,581
Balance, common stock, shares at Aug. 01, 2020	55,837,096	55,837,096
Balance at Aug. 01, 2020	$ 723,955	$ 559	$ 307,506	$ 415,890