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Fair Value - Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Oct. 30, 2022	May 01, 2022	Oct. 31, 2021
U.S. Government Money Market Fund [Member]
Assets:
Investments at fair value	$ 9,089	$ 8,683	$ 8,351
Large Cap Equity Mutual Funds [Member]
Assets:
Investments at fair value			694
U.S. Event Driven Equity Mutual Fund [Member]
Assets:
Investments at fair value			203
Moderate Allocation Mutual Fund [Member]
Assets:
Investments at fair value	77	81	88
Other [Member]
Assets:
Investments at fair value	159	158	201
Growth Allocation Mutual Funds [Member]
Assets:
Investments at fair value	438	435	449
Preferred Securities Mutual Fund [Member]
Assets:
Investments at fair value			282
Bond Mutual Funds [Member]
Assets:
Investments at fair value			4,384
Inflation Protected Bond Mutual Funds [Member]
Assets:
Investments at fair value			2,975
Mortgage Securities Mutual Funds [Member]
Assets:
Investments at fair value			1,118
Quoted prices in active markets for identical assets - Level 1 [Member] | U.S. Government Money Market Fund [Member]
Assets:
Investments at fair value	9,089	8,683	8,351
Quoted prices in active markets for identical assets - Level 1 [Member] | Large Cap Equity Mutual Funds [Member]
Assets:
Investments at fair value			694
Quoted prices in active markets for identical assets - Level 1 [Member] | U.S. Event Driven Equity Mutual Fund [Member]
Assets:
Investments at fair value			203
Quoted prices in active markets for identical assets - Level 1 [Member] | Moderate Allocation Mutual Fund [Member]
Assets:
Investments at fair value	77	81	88
Quoted prices in active markets for identical assets - Level 1 [Member] | Other [Member]
Assets:
Investments at fair value	159	158	201
Quoted prices in active markets for identical assets - Level 1 [Member] | Growth Allocation Mutual Funds [Member]
Assets:
Investments at fair value	$ 438	$ 435	449
Quoted prices in active markets for identical assets - Level 1 [Member] | Preferred Securities Mutual Fund [Member]
Assets:
Investments at fair value			282
Quoted prices in active markets for identical assets - Level 1 [Member] | Bond Mutual Funds [Member]
Assets:
Investments at fair value			4,384
Quoted prices in active markets for identical assets - Level 1 [Member] | Inflation Protected Bond Mutual Funds [Member]
Assets:
Investments at fair value			2,975
Quoted prices in active markets for identical assets - Level 1 [Member] | Mortgage Securities Mutual Funds [Member]
Assets:
Investments at fair value			$ 1,118

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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