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Debt - Letters of Credit (Detail) - Letter of Credit [Member] - USD ($)
12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Debt Instrument [Line Items]    
Credit Facility drawn or outstanding $ 1,800,000 $ 1,600,000
Credit facility maximum borrowing capacity $ 10,000,000  
Credit facility default surcharge percentage on interest 2.00%  
Credit facility initial term 1 year  
Letters of credit automatically annually renewal period 1 year