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Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Based Compensation Expenses

Stock-based compensation is recorded in the consolidated statements of operations as follows (in thousands):

		Three months ended June 30,								Six months ended June 30,
		2024				2023				2024				2023
Cost of goods sold		$	65			$	29			$	123			$	44
Research and development			400				280				728				517
Sales and marketing			75				115				155				276
General and administrative			667				544				1,247				1,112
Total stock-based compensation expense		$	1,207			$	968			$	2,253			$	1,949

Summary of Outstanding Stock Option Activity

The following table summarizes the outstanding stock option activity during the period indicated (shares in thousands):

						Weighted average
		Number of stock options				Exercise price				Remaining contractual term (in years)			Aggregate intrinsic value (in thousands)
Balance at December 31, 2023			2,104			$	10.20				6.2		$	329
Granted			408			$	5.07
Exercised			(8	)		$	3.10						$	18
Expired/Forfeited			(22	)		$	8.28
Balance at June 30, 2024			2,482			$	9.40				6.4		$	1,552
Vested and exercisable at June 30, 2024			1,639			$	11.12				5.0		$	657
Vested and expected to vest at June 30, 2024			2,482			$	9.40				6.4		$	1,552

Summary of Outstanding Restricted Stock Unit Activity

The following table summarizes the Company’s restricted stock unit (RSU) activity during the period indicated (shares in thousands):

		Restricted stock units				Weighted average grant date fair value
Balance at December 31, 2023			706			$	6.97
Grants			484			$	5.14
Vested and released			(196	)		$	7.83
Forfeited			(64	)		$	5.77
Balance at June 30, 2024			930			$	5.92

Schedule of Performance Stock Unit

The following table summarizes the Company’s performance stock unit (PSU) activity during the period indicated (shares in thousands):

		Performance stock units				Weighted average grant date fair value
Balance at December 31, 2023			110			$	1.79
Grants			—			$	—
Vested and released			—			$	—
Forfeited			—			$	—
Balance at June 30, 2024			110			$	1.79

Schedule of Company's share-settled obligation RSU grants

The following table summarizes the Company’s share-settled obligation RSU grants, which immediately vested during the period indicated:

RSU grants that settled obligations (in thousands)		Three months ended June 30,								Six months ended June 30,
		2024				2023				2024				2023
Grant date fair value		$	70.9			$	—			$	195.4			$	949.2
RSU shares granted and vested			14				—				45				187

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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