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Business Combination Achieved in Stages - Narrative (Detail)
3 Months Ended
Feb. 01, 2021
USD ($)
ft²
Aug. 01, 2021
USD ($)
Aug. 02, 2020
USD ($)
Jan. 01, 2017
Business Acquisition [Line Items]        
Equity method investment, ownership percentage     50.00%  
Net sales related to inventory shipments in supply agreement   $ 455,000    
Charges related to rebate agreement   $ 21,000    
Income from investment in unconsolidated joint venture     $ 67,000  
Proportionate share     50.00%  
Investment in unconsolidated joint venture     $ 1,759,000  
CIH [Member]        
Business Acquisition [Line Items]        
Equity method investment, ownership percentage       50.00%
Acquisition of additional ownership percentage 50.00%      
Area of additional plant facility | ft² 120,000      
Date of acquisition Feb. 01, 2021      
Consideration transferred $ 2,700,000      
Payment for acquisition 954,000      
Fair value of previously held ownership interest $ 1,700,000      
Majority ownership percentage acquired 100.00%      
Gain loss on remeasurement of previously held ownership interest $ 0      
Fair value of the identifiable assets acquired, and liabilities assumed 2,678,000      
Proportionate share       50.00%
CIH [Member] | Mattress Fabrics [Member]        
Business Acquisition [Line Items]        
Consideration transferred 2,700,000      
Fair value of the identifiable assets acquired, and liabilities assumed $ 3,500,000      
CIH [Member] | Minimum [Member] | Equipment and Leasehold Improvements [Member]        
Business Acquisition [Line Items]        
Property, plant and equipment, remaining useful life   1 year    
CIH [Member] | Maximum [Member] | Equipment and Leasehold Improvements [Member]        
Business Acquisition [Line Items]        
Property, plant and equipment, remaining useful life   10 years