Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Finite-Life Intangible Assets, Amortization Expense (Detail)

v3.20.2
Goodwill and Intangible Assets - Schedule of Finite-Life Intangible Assets, Amortization Expense (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2020
Oct. 31, 2019
Goodwill And Intangible Assets [Line Items]        
Amortization expense $ 308 $ 295 $ 891 $ 893
Selling and Marketing [Member]        
Goodwill And Intangible Assets [Line Items]        
Amortization expense 190 185 556 555
Research and Development [Member]        
Goodwill And Intangible Assets [Line Items]        
Amortization expense $ 118 $ 110 $ 335 $ 338