Note 6 - Capital Stock and Transactions With Related Parties (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
Dec. 29, 2021	Jan. 29, 2021	Apr. 30, 2022	May 01, 2021	May 02, 2020
Payments of Ordinary Dividends, Common Stock	$ 280,000	$ 280,000	$ 280,003	$ 279,876	$ (0)
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)	$ 3.00	$ 3.00
CMA [Member]
Averaged Operating Costs			970
Averaged Lease Buy-down Payments and Financing Costs			550
Related Party Transaction, Amounts of Transaction			11,400	10,700	$ 10,000
Accounts Payable, Total			$ 4,000	$ 3,800

The amount of averaged lease buy-down payments and financing costs.

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- Definition

The amount of averaged operating costs.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

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- Definition

Amount of transactions with related party during the financial reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
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