Stock-Based Compensation (Tables)

12 Months Ended

Jan. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Total Stock-Based Compensation Recognized for Stock-Based Awards in Consolidated Statements of Operations

Total stock-based compensation recognized for stock-based awards in the consolidated statements of operations was as follows (in thousands):

	Fiscal Year Ended January 31,
	2022		2021		2020
Cost of revenue	$	979	$	1,015	$	1,262
Sales and marketing		1,856		1,910		1,929
Research and development		4,216		4,267		4,610
General and administrative		5,631		5,083		4,960
Total stock-based compensation expense	$	12,682	$	12,275	$	12,761

Summary of Assumptions Used to Estimate Fair Value of Employee Stock Options Grants and Employee Stock Purchase Plan Using Black-Scholes Option Pricing Model

The fair value of employee stock options and ESPP was estimated using the Black–Scholes model with the following assumptions:

	Fiscal Year Ended January 31,
	2022	2021	2020
Stock Options:
Expected volatility	51%	47%	44%
Expected term (in years)	6.1	6.1	6.1
Risk-free interest rate	0.9%	0.6%	2.5%
Dividend yield	NA	NA	NA
	Fiscal Year Ended January 31,
	2022	2021	2020
ESPP:
Expected volatility	41%-58%	46%-83%	40%-51%
Expected term (in years)	0.5-2.0	0.5-2.0	0.5-2.0
Risk-free interest rate	0.1%-0.2%	0.1%-0.4%	1.7%-2.5%
Dividend yield	NA	NA	NA