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Commitments and Contingencies (Detail) - USD ($)
$ in Thousands
Aug. 04, 2019
Apr. 28, 2019
[1]
Jul. 29, 2018
Commitments and Contingencies Disclosure [Line Items]      
Accounts payable for capital expenditures $ 60 $ 78 $ 862
Mattress Fabrics [Member] | Capital Addition Purchase Commitments [Member]      
Commitments and Contingencies Disclosure [Line Items]      
Open Purchase Commitments For Equipment $ 1,500    
[1] Derived from audited financial statements.