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Segment Information - Narrative (Detail) | 12 Months Ended
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Apr. 28, 2024 Customer Segment | Apr. 30, 2023 Customer | May 01, 2022 Customer
Segment Reporting Information [Line Items] |  |  |
Number of operating segments | Segment | 2 |  |
Concentration risk, labor subject to collective bargaining arrangements | Hourly employees associated with our manufacturing facility located in Quebec, Canada (approximately 14% of our workforce) are represented by a local unaffiliated union with a collective bargaining agreement that expires on February 1, 2026. On April 29, 2024 (first quarter of fiscal 2025), our board of directors made a decision to gradually discontinue the operations and sale of the company's manufacturing facility located in Quebec, Canada. During this gradual discontinuation of operations, hourly employees will be entitled to compensation and benefits in accordance with the collective bargaining agreement noted above. |  |
Canada [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of manufacturing facility workforce | 14.00% |  |
Currency Concentration Risk [Member] | Net Sales [Member] | USD [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk percentage | 92.00% | 91.00% | 90.00%
Geographic Concentration Risk [Member] | Net Sales [Member] | International [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk percentage | 32.00% | 29.00% | 31.00%
Customer Concentration Risk [Member] | Net Sales [Member] | Upholstery Fabrics [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk percentage | 12.00% | 15.00% | 13.00%
Number of major customers | 1 | 1 | 1
Customer Concentration Risk [Member] | Net Sales [Member] | Mattress Fabrics [Member] | Minimum [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk percentage | 10.00% | 10.00% | 10.00%
Number of major customers | 0 | 0 | 0
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Upholstery Fabrics [Member] | Minimum [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk percentage | 10.00% | 10.00% |
Number of major customers | 0 | 0 |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Mattress Fabrics [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration risk percentage | 10.00% | 10.00% |
Number of major customers | 0 | 0 |

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- Definition Description of any concentration of labor subject to collective bargaining agreements, including the general nature of the risk. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-16 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 + Details
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