Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Balance at Jan. 30, 2021	$ 246,498	$ 762	$ 115,278	$ 129,303	$ 1,155
Net income (loss)	20,713	0	0	20,713	0
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	(134)	0	0	0	(134)
Dividends paid	0	0	0	0	0
Class A common stock sold through employee stock purchase plan	151	1	150	0	0
Share-based compensation issuances and exercises	1	13	(12)	0	0
Share-based compensation expense	283	0	283	0	0
Repurchase and retirement of treasury shares	(5,629)	(14)	0	(5,615)	0
Balance at May. 01, 2021	261,883	762	115,699	144,401	1,021
Balance at Jan. 30, 2021	246,498	762	115,278	129,303	1,155
Net income (loss)	43,308
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	(775)
Balance at Oct. 30, 2021	270,778	742	118,427	151,229	380
Balance at May. 01, 2021	261,883	762	115,699	144,401	1,021
Net income (loss)	13,992	0	0	13,992	0
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	(145)	0	0	0	(145)
Dividends paid	(2,488)	0	0	(2,488)	0
Class A common stock sold through employee stock purchase plan	23	0	23	0	0
Share-based compensation issuances and exercises	514	0	509	5	0
Share-based compensation expense	1,081	0	1,081	0	0
Repurchase and retirement of treasury shares	(1,048)	(2)	0	(1,046)	0
Balance at Jul. 31, 2021	273,812	760	117,312	154,864	876
Net income (loss)	8,603	0	0	8,603	0
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	(496)	0	0	0	(496)
Dividends paid	(3,788)	0	0	(3,788)	0
Class A common stock sold through employee stock purchase plan	34	0	34	0	0
Share-based compensation issuances and exercises	1,089	0	1,081	8	0
Share-based compensation expense	0	0	0	0	0
Repurchase and retirement of treasury shares	(8,476)	(18)	0	(8,458)	0
Balance at Oct. 30, 2021	270,778	742	118,427	151,229	380
Balance at Jan. 29, 2022	254,196	728	119,540	134,208	(280)
Net income (loss)	9,748	0	0	9,748	0
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	(1,206)	0	0	0	(1,206)
Dividends paid	(3,638)	0	0	(3,638)	0
Class A common stock sold through employee stock purchase plan	111	0	111	0	0
Share-based compensation issuances and exercises	5	0	0	5	0
Share-based compensation expense	598	0	598	0	0
Repurchase and retirement of treasury shares	(9,162)	(20)	0	(9,142)	0
Balance at Apr. 30, 2022	250,652	708	120,249	131,181	(1,486)
Balance at Jan. 29, 2022	254,196	728	119,540	134,208	(280)
Net income (loss)	3,020
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	(1,774)
Balance at Oct. 29, 2022	234,807	705	121,314	114,842	(2,054)
Balance at Apr. 30, 2022	250,652	708	120,249	131,181	(1,486)
Net income (loss)	(2,274)	0	0	(2,274)	0
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	61	0	0	0	61
Dividends paid	(3,632)	0	0	(3,632)	0
Class A common stock sold through employee stock purchase plan	62	0	62	0	0
Share-based compensation issuances and exercises	321	7	308	6	0
Share-based compensation expense	1,077	0	1,077	0	0
Repurchase and retirement of treasury shares	(434)	(1)	0	(433)	0
Balance at Jul. 30, 2022	245,833	714	121,696	124,848	(1,425)
Net income (loss)	(4,453)	0	0	(4,453)	0
Unrealized gain on available-for-sale securities, net of deferred income tax benefit deferred income taxes	(629)	0	0	0	(629)
Dividends paid	(3,600)	0	0	(3,600)	0
Class A common stock sold through employee stock purchase plan	155	1	154	0	0
Share-based compensation issuances and exercises	(308)	0	(308)	0	0
Share-based compensation expense	(226)	(3)	(228)	5	0
Repurchase and retirement of treasury shares	(1,965)	(7)	0	(1,958)	0
Balance at Oct. 29, 2022	$ 234,807	$ 705	$ 121,314	$ 114,842	$ (2,054)