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Long-Term Debt (Details) - USD ($)
12 Months Ended
Jul. 01, 2021
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2020
May 31, 2020
May 31, 2018
Debt Instrument [Line Items]            
Class of warrant or right, exercise price of warrants or rights (in USD per share)           $ 0.62
Class of warrant or right, outstanding (in shares)   0 954,884      
Interest expense, long-term debt   $ 400,000 $ 1,400,000 $ 2,000,000    
Class B Common Stock            
Debt Instrument [Line Items]            
Issuance of common stock upon exercise of warrants (in shares) 940,953          
Loan and Security Agreement            
Debt Instrument [Line Items]            
Class of warrant or right, outstanding (in shares)   954,884        
Revolving Credit Facility | Amended Line of Credit            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity         $ 45,000,000