Annual report pursuant to Section 13 and 15(d)

Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Changes in Deferred Revenue (Detail)

v3.22.1
Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Changes in Deferred Revenue (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Deferred Revenue, Current [Member]    
Accounts Notes And Loans Receivable [Line Items]    
Balance $ 4,737 $ 5,041
Decrease (790) (304)
Balance 3,947 4,737
Deferred Revenue, Long-Term [Member]    
Accounts Notes And Loans Receivable [Line Items]    
Balance 657 1,140
Decrease (580) (483)
Balance $ 77 $ 657