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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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