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Accrued Expenses - Narrative (Detail) - USD ($)
$ in Thousands
Nov. 03, 2019
Apr. 28, 2019
Oct. 28, 2018
Payables and Accruals [Abstract]      
Accrued expenses $ 9,248 $ 9,525 $ 8,670
Current accrued expenses 8,915 9,192 [1] $ 8,670
Long-term accrued expenses $ 333 $ 333 [1]  
[1] Derived from audited financial statements.