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Commitments and Contingencies - Narrative (Detail)		12 Months Ended
	Mar. 23, 2023 ft²	Apr. 30, 2023 USD ($)	May 01, 2022 USD ($)	May 02, 2021 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Area of facility | ft²	63,522
leasehold improvements		$ 2,368,000	$ 3,474,000
Accounts payable for capital expenditures		56,000	473,000
Mattress Fabrics [Member]
Commitments and Contingencies Disclosure [Line Items]
Rental payments		123,000	148,000	$ 151,000
leasehold improvements		67,000
Mattress Fabrics [Member] | Capital Addition Purchase Commitments [Member]
Commitments and Contingencies Disclosure [Line Items]
Open purchase commitments for equipment		629,000
Continuing Operation [Member]
Commitments and Contingencies Disclosure [Line Items]
Operating lease costs		3,600,000	3,900,000	2,900,000
Short-term lease costs		$ 44,000	$ 68,000	$ 55,000

X

- Definition

The carrying value as of the balance sheet date of obligations incurred and payable for the purchase of a building and equipment that are to be repaid within one year.

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Area of facility

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Commitments and contingencies disclosure.

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- Definition

Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

+ References

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-Publisher FASB
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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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- Definition

Cash payments to lessor's for use of assets under operating leases.

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- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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