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. 29, 2022	$ 254,196	$ 728	$ 119,540	$ 134,208	$ (280)
Net income (loss)	9,748	0	0	9,748	0
Unrealized net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	(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 net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	(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 net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	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 net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	(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)
Balance at Jan. 28, 2023	226,593	691	122,431	104,709	(1,238)
Net income (loss)	4,428	0	0	4,428	0
Unrealized net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	355	0	0	0	355
Dividends paid	(3,455)	0	0	(3,455)	0
Class A common stock sold through employee stock purchase plan	195	0	195	0	0
Share-based compensation issuances and exercises	3	0	0	3	0
Share-based compensation expense	929	0	929	0	0
Repurchase and retirement of treasury shares	(2,267)	(8)	0	(2,259)	0
Balance at Apr. 29, 2023	226,781	683	123,555	103,426	(883)
Balance at Jan. 28, 2023	226,593	691	122,431	104,709	(1,238)
Net income (loss)	(523)
Unrealized net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	723
Balance at Oct. 28, 2023	217,318	695	125,949	91,189	(515)
Balance at Apr. 29, 2023	226,781	683	123,555	103,426	(883)
Net income (loss)	1,127	0	0	1,127	0
Unrealized net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	167	0	0	0	167
Dividends paid	(3,507)	0	0	(3,507)	0
Class A common stock sold through employee stock purchase plan	32	1	31	0	0
Share-based compensation issuances and exercises	0	0	0	0	0
Share-based compensation expense	1,227	12	1,212	3	0
Repurchase and retirement of treasury shares	(294)	(1)	0	(293)	0
Balance at Jul. 29, 2023	225,533	695	124,798	100,756	(716)
Net income (loss)	(6,077)	0	0	(6,077)	0
Unrealized net gains (losses) on available-for-sale securities, net of deferred income tax expense (benefit)	201	0	0	0	201
Dividends paid	(3,495)	0	0	(3,495)	0
Class A common stock sold through employee stock purchase plan	189	1	188	0	0
Share-based compensation issuances and exercises	0	0	0	0	0
Share-based compensation expense	967	(1)	963	5	0
Repurchase and retirement of treasury shares	0	0	0	0	0
Balance at Oct. 28, 2023	$ 217,318	$ 695	$ 125,949	$ 91,189	$ (515)