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Inventories - Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 30, 2022 | May 01, 2022 | Oct. 31, 2021 | Apr. 28, 2024 | Apr. 30, 2023 | May 01, 2022
Inventory [Line Items] |  |  |  |  |  |
Non-cash inventory charges |  | $ 1,900,000 |  | $ (1,600,000) | $ 5,800,000 | $ 1,900,000
Write down to net realizable value |  |  |  | (1,628,000) | 5,819,000 | $ 1,927,000
Exit of Cut and Sew Upholstery Fabrics Operation [Member] | Shanghai, China [Member] |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Loss on disposal |  |  |  |  | 98,000 |
Mattress Fabrics [Member] |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Non-cash inventory charges | $ 3,800,000 |  |  | (1,600,000) |  |
Write down to net realizable value | $ 2,900,000 |  |  |  | 2,900,000 |
Percentage of decline in net sales | 35.80% |  |  |  |  |
Gross margin percentage |  |  | 15.00% |  |  |
Gross margin percentage excluding non-cash inventory charges | (8.70%) |  |  |  |  |
Upholstery Fabrics [Member] |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Non-cash inventory charges |  |  |  | (1,600,000) |  |
Upholstery Fabrics [Member] | Disposal and Markdowns of Inventory [Member] | Ouanaminthe, Haiti [Member] |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Restructuring related charge |  |  |  | $ 40,000 |  |
Mattress and Upholstery Fabrics [Member] |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Non-cash inventory charges |  |  |  |  | $ 2,800,000 |

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