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Restructuring Activities - Summary of Assets Held for Sale (Parenthetical) (Detail)	3 Months Ended
	Jul. 28, 2024 USD ($)
Restructuring Cost and Reserve [Line Items]
Assets held for sale	$ 607,000
2025 Restructuring Plan [Member] | Equipment [Member]
Restructuring Cost and Reserve [Line Items]
Assets held for sale	357,000
Assets held for sale, impairment charge	0
2025 Restructuring Plan [Member] | Right of Use Asset [Member]
Restructuring Cost and Reserve [Line Items]
Assets held for sale	656,000
Assets held for sale, fair value	250,000
2025 Restructuring Plan [Member] | Right of Use Asset [Member] | Fair Value, Inputs, Level 2 [Member]
Restructuring Cost and Reserve [Line Items]
Assets held for sale, fair value	250,000
2025 Restructuring Plan [Member] | Right of Use Asset [Member] | Restructuring Expense [Member]
Restructuring Cost and Reserve [Line Items]
Assets held for sale, impairment charge	$ 406,000

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Fair value portion of assets classified as held for sale.

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