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Intangible Assets - Narrative (Detail) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
May 03, 2020 | Nov. 01, 2020 | Nov. 03, 2019
Intangible Assets [Line Items] |  |  |
Tradenames | $ 540,000 | $ 540,000 | $ 7,232,000
Gross carrying amount of customer relationships | 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
Customer Relationships [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Accumulated amortization | 877,000 | 1,000,000.0 | 727,000
Remaining amortization expense for the fiscal year |  | 151,000 |
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 |  | 301,000 |
Remaining amortization expense for the fourth fiscal year |  | 301,000 |
Remaining amortization expense for the fiscal year thereafter |  | $ 732,000 |
Weighted average remaining amortization period |  | 7 years 1 month 6 days |
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 | 1,400,000 | $ 1,500,000 | $ 1,400,000
Remaining amortization expense for the fiscal year |  | 37,000 |
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 |  | 76,000 |
Remaining amortization expense for the fiscal year thereafter |  | $ 224,000 |
Weighted average remaining amortization period |  | 7 years 6 months |
Read Window Products, LLC [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Impairment charge | $ 143,000 |  |

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