Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Summary of Stock Options Activity

The following table summarizes the stock option activity for the year ended December 31, 2022 (in thousands, except share and per share data):

	Number of Shares			Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at January 1, 2022		2,764,112		$	4.63		8.69	$	45,280
Granted		1,507,591		$	11.14		—		—
Exercised		(118,900	)	$	1.22		—		—
Forfeited		(232,047	)	$	9.79		—		—
Expired		(74,224	)	$	2.04		—		—
Outstanding at December 31, 2022		3,846,532		$	7.02		8.31	$	9,083
Exercisable at December 31, 2022		1,354,691		$	4.80		7.91	$	4,643
Vested and expected to vest at December 31, 2022		3,561,850		$	7.55		8.50	$	7,606

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

The following table summarizes the restricted stock unit activity for the year ended December 31, 2022 (in thousands, except share and per share data):

	Number of Shares		Weighted Average Grant Date Fair Value per Share		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at January 1, 2022		—	$	—		—	$	—
Granted		28,071	$	7.43		—		—
Vested		—	$	—		—		—
Forfeited		—	$	—		—		—
Outstanding at December 31, 2022		28,071	$	7.43		0.42	$	158
Vested and expected to vest at December 31, 2022		28,071	$	7.43		0.42	$	158

Schedule of Stock-Based Compensation Expense

Summary of Stock-Based Compensation Expense

Stock-based compensation expense included in the accompanying financial statements was as follows (in thousands):

	For the Year Ended December 31,
	2022		2021
Cost of sales	$	147	$	7
Research and development		187		157
Sales and marketing		504		66
General and administrative		2,873		1,321
Total stock-based compensation expense	$	3,711	$	1,551

Schedule of Weighted-Average Assumptions used in Black-Scholes Option-Pricing Model

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

	For the Year Ended December 31,
	Employee Stock Option Plans						Employee Stock Purchase Plan
	2022			2021			2022			2021
Estimated dividend yield		-	%		-	%		-	%		-	%
Weighted-average expected stock price volatility		33.77	%		33.51	%		43.00	%		25.47	%
Weighted-average risk-free interest rate		2.79	%		1.06	%		3.70	%		0.06	%
Expected average term of options (in years)		6.25			6.17			0.50			0.50
Weighted-average fair value of common stock	$	11.14		$	19.89		$	7.20		$	24.63
Weighted-average fair value per option	$	4.18		$	6.45		$	1.96		$	5.46