Investments - Schedule of Available-For-Sale Securities, Classified by Maturity Period (Details) - USD ($) $ in Thousands	Jan. 30, 2022	Jan. 31, 2021
Investments [Abstract]
Available-for-sale securities, Market Value - Within 1 year	$ 10,582
Available-for-sale securities, Adjusted Cost - Within 1 year	10,856
Available-for-sale securities, Market Value - After 1 year through 5 years	2,290
Available-for-sale securities, Adjusted Cost - After 1 year through 5 years	3,545
Available-for-sale securities, Market Value - Total investments	12,872	$ 11,989
Amortized Cost	$ 14,401	$ 13,244

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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