Accumulated Other Comprehensive Income (Reclassification out of Accumulated Other Comprehensive Income Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 30, 2022	Apr. 30, 2022	Jul. 31, 2021	May 01, 2021	Jul. 30, 2022	Jul. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance Accumulated other comprehensive income, net of tax		$ (280)			$ (280)
Unrealized gain on available-for-sale securities, net of deferred income taxes of ($18) and ($343) for the three and six months ended July 30, 2022 and ($44) and ($85) for the three and six months ended July 31, 2021, respectively	$ 61	(1,206)	$ (145)	$ (134)	(1,145)	$ (279)
Ending Balance Accumulated other comprehensive income, net of tax	(1,425)				(1,425)
Change In Unrealized Gains On Available For Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance Accumulated other comprehensive income, net of tax	(1,486)	(280)	1,021	1,155	(280)	1,155
Other Comprehensive Income Loss Before Reclassifications Net Of Tax	64		(171)		(1,139)	(344)
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax	(3)		26		(6)	65
Unrealized gain on available-for-sale securities, net of deferred income taxes of ($18) and ($343) for the three and six months ended July 30, 2022 and ($44) and ($85) for the three and six months ended July 31, 2021, respectively	61		(145)		(1,145)	(279)
Ending Balance Accumulated other comprehensive income, net of tax	$ (1,425)	$ (1,486)	$ 876	$ 1,021	$ (1,425)	$ 876