Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Allocated Stock Based Compensation Expense

Stock-based compensation expense was allocated based on the employees’ and non-employees’ functions as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Cost of revenue	$	199	$	180	$	427	$	356
Research and development		492		273		979		614
Sales and marketing		810		900		1,888		1,821
General and administrative		997		1,080		2,650		2,327
Total	$	2,498	$	2,433	$	5,944	$	5,118

Schedule of Weighted Average Assumptions Used in Black-Scholes Options Pricing Model

The weighted average assumptions used in the Black-Scholes options pricing model are as follows:

	Six Months Ended June 30,
	2022			2021
Expected dividend yield		0.0	%		0.0	%
Risk free interest rate		2.6	%		1.0	%
Expected stock price volatility		83.4	%		86.0	%
Expected term (years)		6.3			6.1

Schedule of Fair Value of ESPP Used in Black-Scholes Options Pricing Model

The fair value of the purchase right for the ESPP option is estimated on the date of grant using the Black-Scholes pricing model with the following assumptions during 2022:

Expected dividend yield	0.0	%
Risk free interest rate	0.2	%
Expected stock price volatility	45.0	%
Expected term (years)	0.5

Restricted Stock Units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Restricted Stock Units and Restricted Stock Awards

A summary of restricted stock unit activity for the six months ended June 30, 2022 is as follows:

				Weighted
				Average
				Grant Date
	Shares			Fair Value
Unvested at December 31, 2021		509,388		$	24.69
Granted		415,755			18.68
Vested		(109,821	)		24.85
Canceled		(74,011	)		23.66
Unvested at June 30, 2022		741,311		$	21.40

Restricted Stock Awards

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Restricted Stock Units and Restricted Stock Awards

A summary of restricted stock award activity for the six months ended June 30, 2022 is as follows:

				Weighted
				Average
				Grant Date
	Shares			Fair Value
Unvested at December 31, 2021		7,989		$	1.68
Granted/purchased		545			20.72
Vested		(8,061	)		2.97
Canceled		(473	)		1.68
Unvested at June 30, 2022		-		$	-