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Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

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 March 31,
		2023				2022
Cost of goods sold		$	15			$	13
Research and development			237				267
Sales and marketing			161				287
General and administrative			568				674
Total stock-based compensation expense		$	981			$	1,241

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, 2022			2,065			$	11.78				6.7		$	758
Granted			257			$	6.03
Expired/Forfeited			(98	)		$	15.08
Balance at March 31, 2023			2,224			$	11.20				6.6		$	604
Vested and exercisable at March 31, 2023			1,477			$	11.35				5.5		$	573
Vested and expected to vest at March 31, 2023			2,224			$	11.20				6.6		$	604

Summary of Outstanding Restricted Stock Unit Activity

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

		Restricted stock units				Weighted average grant date fair value
Balance at December 31, 2022			444			$	11.78
Grants			568			$	5.27
Vested and released			(278	)		$	7.85
Forfeited			(27	)		$	12.91
Balance at March 31, 2023			708			$	8.05

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, 2022			137			$	2.09
Grants			—			$	—
Vested and released			—			$	—
Forfeited			(23	)		$	2.20
Balance at March 31, 2023			114			$	2.07

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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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-Topic 718
-SubTopic 10
-Section 50
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