Fair Value Measurements (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 29, 2023	Jul. 30, 2022	Jan. 28, 2023
Fair Value Disclosures [Abstract]
Investment Owned, at Fair Value	$ 12,200,000		$ 12,200,000
Accrued Liabilities and Other Liabilities	1,600,000		1,600,000
Cumulative unrealized losses related to equity securities still held			(1,800,000)	$ (2,500,000)	$ (2,900,000)
Unrealized gains (losses) related to equity securities	761,000	$ 34,000	1,100,000	(501,000)
Long-lived assets, impairment charges	$ 0	$ 0	$ 0	$ 0