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Intangible Assets - Narrative (Detail) - USD ($)			3 Months Ended				12 Months Ended
	Apr. 30, 2023	Oct. 30, 2022	Apr. 30, 2023	Jan. 29, 2023	Oct. 30, 2022	Oct. 31, 2021	Apr. 30, 2023	May 01, 2022	May 02, 2021	May 03, 2020
Intangible Assets [Line Items]
Tradename	$ 540,000		$ 540,000				$ 540,000	$ 540,000
Gross carrying amount of customer relationships	3,100,000		3,100,000				3,100,000	3,100,000
Gross carrying amount of non-compete agreement	2,000,000.0		2,000,000.0				2,000,000.0	2,000,000.0
Property, plant and equipment, net	36,111,000		36,111,000				36,111,000	41,702,000
Right of use assets	8,191,000		8,191,000				8,191,000	15,577,000
Incurred operating losses							(28,478,000)	678,000	$ 12,076,000
Impairment charges of tradename	0
Customer Relationships [Member]
Intangible Assets [Line Items]
Accumulated amortization	1,800,000		1,800,000				1,800,000	1,500,000
Remaining amortization expense for the fiscal year	301,000		301,000				301,000
Remaining amortization expense for the second fiscal year	301,000		301,000				301,000
Remaining amortization expense for the third fiscal year	301,000		301,000				301,000
Remaining amortization expense for the fourth fiscal year	278,000		278,000				278,000
Remaining amortization expense for the fifth fiscal year	52,000		52,000				52,000
Remaining amortization expense for the fiscal year thereafter	102,000		102,000				$ 102,000
Weighted average remaining amortization period							4 years 9 months 18 days
Finite-lived intangible assets, net	1,335,000		1,335,000				$ 1,335,000	1,636,000	1,937,000	$ 2,238,000
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
Accumulated amortization	1,600,000		1,600,000				$ 1,600,000	1,600,000
Remaining amortization expense for the fiscal year	76,000		76,000				76,000
Remaining amortization expense for the second fiscal year	76,000		76,000				76,000
Remaining amortization expense for the third fiscal year	76,000		76,000				76,000
Remaining amortization expense for the fourth fiscal year	76,000		76,000				76,000
Remaining amortization expense for the fifth fiscal year	73,000		73,000				$ 73,000
Weighted average remaining amortization period							5 years
Finite-lived intangible assets, net	377,000		377,000				$ 377,000	$ 452,000	$ 527,000	$ 602,000
Mattress Fabrics [Member]
Intangible Assets [Line Items]
Percentage of decline in net sales					35.80%
Gross margin percentage					(23.10%)	15.00%
Read Window Products, LLC [Member]
Intangible Assets [Line Items]
Impairment charge							0
Carrying amount of asset group, net	1,500,000		1,500,000				1,500,000
Read Window Products, LLC [Member] | Customer Relationships [Member]
Intangible Assets [Line Items]
Finite-lived intangible assets, net	978,000		978,000				978,000
Read Window Products, LLC [Member] | Property, Plant and Equipment [Member]
Intangible Assets [Line Items]
Property, plant and equipment, net	329,000		329,000				329,000
Read Window Products, LLC [Member] | Right Of Use Assets [Member]
Intangible Assets [Line Items]
Right of use assets	215,000		215,000				215,000
Mattress Asset Group [Member]
Intangible Assets [Line Items]
Impairment charge	0	$ 0
Carrying amount of asset group, net	36,800,000	38,800,000	36,800,000		$ 38,800,000		36,800,000
Mattress Asset Group [Member] | Property, Plant and Equipment [Member]
Intangible Assets [Line Items]
Property, plant and equipment, net	33,700,000	35,900,000	33,700,000		35,900,000		33,700,000
Mattress Asset Group [Member] | Right Of Use Assets [Member]
Intangible Assets [Line Items]
Right of use assets	2,300,000	2,100,000	2,300,000		2,100,000		2,300,000
Mattress Asset Group [Member] | Mattress Fabrics [Member]
Intangible Assets [Line Items]
Incurred operating losses			(2,500,000)	$ (4,200,000)
Mattress Asset Group [Member] | Mattress Fabrics [Member] | Customer Relationships [Member]
Intangible Assets [Line Items]
Finite-lived intangible assets, net	358,000	383,000	358,000		383,000		358,000
Mattress Asset Group [Member] | Mattress Fabrics [Member] | Non-Compete Agreement [Member]
Intangible Assets [Line Items]
Finite-lived intangible assets, net	$ 377,000	$ 414,000	$ 377,000		$ 414,000		$ 377,000

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