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Inventories - Narrative (Detail) - USD ($)
3 Months Ended 6 Months Ended
Oct. 29, 2023
Jul. 30, 2023
Oct. 30, 2022
Oct. 31, 2021
Oct. 29, 2023
Oct. 30, 2022
Inventory [Line Items]            
Non-cash inventory charges $ (1,300,000)   $ 5,300,000   $ (2,000,000) $ 6,400,000
Non-cash inventory charges         (2,001,000) 6,439,000
Exit of Cut and Sew Upholstery Fabrics Operation [Member] | Ouanaminthe, Haiti [Member]            
Inventory [Line Items]            
Gain (Loss) on disposal 78,000          
Partially offset charge for markdowns of inventory 78,000          
Mattress and Upholstery Fabrics [Member]            
Inventory [Line Items]            
Non-cash inventory charges (1,300,000)   2,300,000   (2,000,000) 3,400,000
Credit related adjustments to inventory 1,200,000       2,100,000  
Restructuring related charge         101,000  
Mattress Fabrics [Member]            
Inventory [Line Items]            
Non-cash inventory charges (801,000)   $ 3,800,000   (1,500,000) 4,200,000
Percentage of decline in net sales     35.80%      
Gross margin percentage excluding non-cash inventory charges     (8.70%)      
Gross margin percentage       15.00%    
Non-cash inventory charges     $ 2,900,000     2,900,000
Upholstery Fabrics [Member]            
Inventory [Line Items]            
Non-cash inventory charges (482,000)   1,500,000   $ (453,000) 2,200,000
Upholstery Fabrics [Member] | Disposal and Markdowns of Inventory [Member] | Ouanaminthe, Haiti [Member]            
Inventory [Line Items]            
Restructuring related charge $ 78,000 $ 179,000        
Upholstery Fabrics [Member] | Disposal and Markdowns of Inventory [Member] | Shanghai, China [Member]            
Inventory [Line Items]            
Restructuring related charge     $ 98,000     $ 98,000