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Summary of Significant Accounting Policies (Future Principal Receipts Related to Available-For-Sale Security by Contractual Maturity) (Details) $ in Thousands	Jan. 30, 2022 USD ($)
Available For Sale Securities [Abstract]
Amortized Cost, Within one year	$ 163
Amortized Cost, After one year through five years	1,103
Amortized Cost, After five years through ten years	1,696
Amortized Cost, After ten years	2,938
Amortized Cost, Total	5,900
Estimated Fair Value, Within one year	202
Estimated Fair Value, After one year through five years	1,298
Estimated Fair Value, After five years through ten years	1,891
Estimated Fair Value, After ten years	3,163
Estimated Fair Value, Total	$ 6,554

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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 sixth through tenth 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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