Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Summary of Stock Based Compensation Expense Recognized (Detail)

v3.22.2.2
Stockholders' Equity - Summary of Stock Based Compensation Expense Recognized (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2022
Jul. 31, 2021
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 250 $ 833 $ 534 $ 1,041
Cost of Revenue [Member]        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 7 23 15 24
Research and Development [Member]        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 6 (2) 12 (79)
Sales and Marketing [Member]        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense 15 50 26 68
General and Administrative [Member]        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 222 $ 762 $ 481 $ 1,028