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Commitments and Contingencies - Narrative (Detail) - USD ($)
$ in Thousands
Feb. 02, 2020
Apr. 28, 2019
[1]
Jan. 27, 2019
Commitments and Contingencies Disclosure [Line Items]      
Accounts payable for capital expenditures $ 177 $ 78 $ 91
Mattress Fabrics [Member] | Capital Addition Purchase Commitments [Member]      
Commitments and Contingencies Disclosure [Line Items]      
Open Purchase Commitments For Equipment $ 2,300    
[1] Derived from audited financial statements.