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 |  |

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