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Common Stock Repurchase Program (Detail) - Common Stock [Member] - USD ($)	6 Months Ended
	Oct. 29, 2023	Oct. 30, 2022	Mar. 31, 2020
Stockholders Equity Note [Line Items]
Common stock repurchased	0	0
Remaining authorized repurchase amount	$ 3,200,000
Stock Repurchase Program March 2020 [Member]
Stockholders Equity Note [Line Items]
Authorization amount for repurchase of common stock			$ 5,000,000

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Stockholders Equity Note [Line Items]

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased and retired during the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
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