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Intangible Assets - Narrative (Detail) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Jul. 31, 2022 | May 01, 2022 | Aug. 01, 2021
Intangible Assets [Line Items] |  |  |
Asset impairment charges | $ 0 |  |
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 | 1,600,000 | 1,500,000 | 1,300,000
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 | 301,000 |  |
Remaining amortization expense for the fourth fiscal year | 278,000 |  |
Remaining amortization expense for the fiscal year thereafter | $ 154,000 |  |
Weighted average remaining amortization period | 5 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 |  |
Accumulated amortization | $ 1,600,000 | $ 1,600,000 | $ 1,600,000
Remaining amortization expense for the fiscal year | 56,000 |  |
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 | $ 73,000 |  |
Weighted average remaining amortization period | 5 years 9 months 18 days |  |

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