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Intangible Assets - Narrative (Detail) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
May 03, 2020 | Feb. 02, 2020 | May 02, 2021 | May 03, 2020 | Apr. 28, 2019 | Apr. 29, 2018
Intangible Assets [Line Items] |  |  |  |  |  |
Asset impairment charges |  |  | $ 0 | $ 33,914,000 | $ 0 |
Tradenames | $ 540,000 |  | 540,000 | 540,000 | 7,232,000 | $ 683,000
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 |  | 1,200,000 | 877,000 |  |
Remaining amortization expense for the 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 fifth fiscal year |  |  | 301,000 |  |  |
Remaining amortization expense for the fiscal year thereafter |  |  | $ 432,000 |  |  |
Weighted average remaining amortization period |  |  | 6 years 8 months 12 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] |  |  |  |  |  |
Accumulated amortization | 1,400,000 |  | $ 1,500,000 | 1,400,000 |  |
Remaining amortization expense for the fiscal year |  |  | 75,000 |  |  |
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 fifth fiscal year |  |  | 76,000 |  |  |
Remaining amortization expense for the fiscal year thereafter |  |  | $ 148,000 |  |  |
Weighted average remaining amortization period |  |  | 7 years |  |  |
Prior Acquisition [Member] | Mattress Fabrics [Member] | Non-Compete Agreement [Member] |  |  |  |  |  |
Intangible Assets [Line Items] |  |  |  |  |  |
Useful life |  |  | 15 years |  |  |
Continuing Operations [Member] |  |  |  |  |  |
Intangible Assets [Line Items] |  |  |  |  |  |
Impairment charge |  |  |  | 143,000 |  |
Continuing Operations [Member] | Read Window Products, LLC [Member] |  |  |  |  |  |
Intangible Assets [Line Items] |  |  |  |  |  |
Tradenames |  |  |  |  | 683,000 |
Impairment charge |  |  |  | 143,000 |  |
Discontinued Operations [Member] |  |  |  |  |  |
Intangible Assets [Line Items] |  |  |  |  |  |
Tradenames |  |  |  |  | $ 6,600,000 |
Impairment charge |  |  |  | 6,549,000 |  |
Discontinued Operations [Member] | eLuxury [Member] | Home Accessories [Member] |  |  |  |  |  |
Intangible Assets [Line Items] |  |  |  |  |  |
Impairment charge | $ 4,200,000 | $ 2,400,000 |  | $ 6,600,000 |  |

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