v3.22.1
Summary of Significant Accounting Policies - Additional Information (Detail)
12 Months Ended
Oct. 31, 2020
Oct. 14, 2020
Jan. 29, 2022
USD ($)
Segment
Customer
shares
Jan. 30, 2021
USD ($)
Customer
shares
Feb. 01, 2020
USD ($)
Summary Of Significant Accounting Policies [Line Items]          
Contract liabilities     $ 1,895,000,000 $ 880,000,000 $ 154,000,000
Contract liability revenue recognized     $ 817,000,000 107,000,000  
Maturity of cash equivalents     90 days    
Deposits with certain financial institutions     $ 1,639,000 1,573,000  
Accounts receivable, allowance for doubtful accounts     0 6,000  
Trade accounts receivable, net of allowance for doubtful accounts of $0 and $6, respectively     210,000 226,000 $ 706,000,000
Inventory purchased from related party     811,000    
Inventory write-downs     $ 353,000 493,000  
Number of operating segments | Segment     1    
Impairment of goodwill and intangible assets     $ 0 0  
Impairment of long-lived assets     0 0  
Advertising expense     $ 750,000 $ 410,000  
Percentage of tax benefit likely to being realized upon settlement     50.00%    
Uncertain tax positions     $ 0    
Anti-dilutive securities excluded from computation of earnings (loss) per share | shares     1,507,000 2,968,000  
Reverse stock split description one-for-ten reverse stock split one-for-ten reverse split      
Reverse stock split, conversion ratio 0.1 0.1      
Accounting Standards Update 2020-06 [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Change in accounting principle, accounting standards update, adoption date     Jan. 31, 2021    
Change in accounting principle, accounting standards update, early adoption     true    
Supplier Concentration Risk [Member] | Inventory Purchases [Member] | Major Supplier One [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage     90.00% 90.00%  
Supplier Concentration Risk [Member] | Inventory Purchases [Member] | Major Supplier Two [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage     90.00% 90.00%  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage     10.00% 10.00%  
Number of customers | Customer     0 0  
Customer Concentration Risk [Member] | Accounts Receivable [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage     10.00% 10.00%  
Number of customers | Customer     0 0  
Apple Products [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Percentage of product sales     69.00% 74.00%  
In The Money Common Share Equivalents [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Anti-dilutive securities excluded from computation of earnings (loss) per share | shares     3,943,000 149,000  
Minimum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Estimated useful lives of property and equipment     3 years    
Maximum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Estimated useful lives of property and equipment     5 years