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Investments (Schedule of Investments) (Details) - USD ($) $ in Thousands	Jul. 29, 2023	Jan. 28, 2023
Held-to-maturity Securities [Abstract]
Held-to-Maturity Securities, Amortized Cost or Par Value	$ 23,714	$ 20,997
Held-to-Maturity Securities, Estimated Fair Value	23,706	20,992
State and municipal bonds [Member]
Held-to-maturity Securities [Abstract]
Held-to-Maturity Securities, Amortized Cost or Par Value	23,714	20,997
Held-to-Maturity Securities, Gross Unrealized Gains	4	10
Held-to-Maturity Securities, Gross Unrealized Losses	(12)	(15)
Held-to-Maturity Securities, Other-than-Temporary Impairment	0	0
Held-to-Maturity Securities, Estimated Fair Value	23,706	20,992
Mutual funds [Member]
Trading Securities [Abstract]
Trading Securities, Amortized Cost or Par Value	22,964	20,871
Trading Securities, Gross Unrealized Gains	652	0
Trading Securities, Gross Unrealized Losses	0	(247)
Trading Securities, Other-than-Temporary Impairment	0	0
Trading Securities, Estimated Fair Value	$ 23,616	$ 20,624

X

- Definition

The amount by which the fair value of an investment in debt and equity securities categorized as held-to-maturity is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income at a point in time.

+ References

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This item represents other-than-temporary impairment for securities, at a point in time, which are categorized as trading securities.

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- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized as trading securities.

+ References

No definition available.

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Cost of investment in debt investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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- Definition

Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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+ References

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