Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Detail)

v3.21.2
Significant Accounting Policies - Additional Information (Detail)
3 Months Ended 9 Months Ended 12 Months Ended
Aug. 01, 2021
USD ($)
Oct. 31, 2021
USD ($)
Customer
Oct. 31, 2020
Customer
Oct. 31, 2021
USD ($)
Customer
Oct. 31, 2020
USD ($)
Customer
Jan. 31, 2021
USD ($)
Customer
Significant Accounting Policies [Line Items]            
Goodwill impairment $ 0     $ 0   $ 0
Impairment costs       0   0
Deferred capitalized commission costs   $ 371,000   371,000   553,000
Amortization expense       $ 182,000 $ 218,000  
COVID-19 [Member]            
Significant Accounting Policies [Line Items]            
Goodwill impairment         $ 0 $ 0
Customer Concentration Risk [Member] | Total Revenue [Member]            
Significant Accounting Policies [Line Items]            
Number of customers accounted | Customer   1 1 1 1  
Customer Concentration Risk [Member] | Total Revenue [Member] | Customer One [Member]            
Significant Accounting Policies [Line Items]            
Concentration risk percentage   19.00% 29.00% 12.00% 21.00%  
Credit Concentration Risk [Member] | Accounts Receivable [Member]            
Significant Accounting Policies [Line Items]            
Number of customers accounted | Customer       2   2
Credit Concentration Risk [Member] | Accounts Receivable [Member] | Customer One [Member]            
Significant Accounting Policies [Line Items]            
Concentration risk percentage       24.00%   18.00%
Credit Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member]            
Significant Accounting Policies [Line Items]            
Concentration risk percentage       18.00%   16.00%