Intangible Assets - Narrative (Detail) - USD ($)	3 Months Ended
	Jul. 30, 2023	Oct. 30, 2022	Jul. 31, 2022	Apr. 30, 2023		May 01, 2022
Intangible Assets [Line Items]
Asset impairment charges	$ 0
Gross carrying amount of customer relationships	3,100,000		$ 3,100,000	$ 3,100,000
Incurred operating losses	(3,082,000)		(4,738,000)
Gross carrying amount of non-compete agreement	2,000,000		2,000,000	2,000,000
Property, plant and equipment, net	34,929,000		40,490,000	36,111,000	[1]
Right of use assets	7,466,000		14,556,000	8,191,000	[1]
Customer Relationships [Member]
Intangible Assets [Line Items]
Finite-lived intangible assets, net	1,260,000		1,561,000	1,335,000		$ 1,636,000
Accumulated amortization	1,900,000		1,600,000	1,800,000
Remaining amortization expense for the fiscal year	226,000
Remaining amortization expense for the first fiscal year	301,000
Remaining amortization expense for the second fiscal year	301,000
Remaining amortization expense for the third fiscal year	278,000
Remaining amortization expense for the fourth fiscal year	52,000
Remaining amortization expense for the fiscal year thereafter	$ 102,000
Weighted average remaining amortization period	4 years 6 months
Customer Relationships [Member] | Minimum [Member]
Intangible Assets [Line Items]
Useful life	9 years
Customer Relationships [Member] | Maximum [Member]
Intangible Assets [Line Items]
Useful life	17 years
Non-Compete Agreement [Member]
Intangible Assets [Line Items]
Useful life	15 years
Finite-lived intangible assets, net	$ 358,000		433,000	377,000		$ 452,000
Accumulated amortization	1,700,000		$ 1,600,000	$ 1,600,000
Remaining amortization expense for the fiscal year	57,000
Remaining amortization expense for the first fiscal year	76,000
Remaining amortization expense for the second fiscal year	76,000
Remaining amortization expense for the third fiscal year	76,000
Remaining amortization expense for the fourth fiscal year	$ 73,000
Weighted average remaining amortization period	4 years 9 months 18 days
Mattress Asset Group [Member]
Intangible Assets [Line Items]
Carrying amount of asset group, net	$ 35,600,000
Impairment charge	0
Mattress Asset Group [Member] | Mattress Fabrics [Member]
Intangible Assets [Line Items]
Incurred operating losses		$ 17,200,000
Mattress Asset Group [Member] | Customer Relationships [Member] | Mattress Fabrics [Member]
Intangible Assets [Line Items]
Finite-lived intangible assets, net	345,000
Mattress Asset Group [Member] | Non-Compete Agreement [Member] | Mattress Fabrics [Member]
Intangible Assets [Line Items]
Finite-lived intangible assets, net	358,000
Mattress Asset Group [Member] | Property, Plant and Equipment [Member]
Intangible Assets [Line Items]
Property, plant and equipment, net	32,800,000
Mattress Asset Group [Member] | Right Of Use Assets [Member]
Intangible Assets [Line Items]
Right of use assets	$ 2,100,000

[1] Derived from audited consolidated financial statements.