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Income Taxes - Uncertainty in Income Taxes - Narrative (Detail) - USD ($)	Apr. 30, 2023	May 01, 2022	May 02, 2021	May 03, 2020
Income Taxes [Line Items]
Unrecognized tax benefits	$ 1,179,000	$ 1,101,000	$ 1,444,000	$ 1,269,000
Unrecognized tax benefits that would favorably impact effective income tax expense if recognized	1,200,000	1,100,000
Gross amount of interest and penalties due to unrecognized tax benefits	$ 239,000	$ 185,000

X

- Definition

Income Taxes [Line Items]

+ References

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 10B
-URI https://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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