Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-Based Compensation Expense

The following tables present the Company’s stock-based compensation for stock-settled awards by type (i.e., stock options and restricted stock units (“RSUs”)) granted under the Company’s incentive plans, and rights to purchase shares of common stock issued under the Company’s Employee Stock Purchase Plan (“ESPP”) and financial statement lines included in the accompanying unaudited condensed consolidated statement of operations and comprehensive loss for the three and six months ended June 30:

	Three months ended June 30,				Six months ended June 30,
	2024		2023		2024		2023
	(in thousands)
Options	$	257	$	757	$	647	$	1,588
RSUs		446		1,229		2,946		2,295
ESPP		—	73			—	118
Total stock-based compensation expense	$	703	$	2,059	$	3,593	$	4,001

	Three months ended June 30,
	2024						2023
	Continuing operations		Discontinued operations		Total		Continuing operations		Discontinued operations		Total
	(in thousands)
Cost of sales	$	8	$	—	$	8	$	79	$	12	$	91
Selling and marketing		68		—		68		589		7		596
General and administrative		601		—		601		1,165		19		1,184
Research and development		26		—		26		178		10		188
Total stock-based compensation expense	$	703	$	—	$	703	$	2,011	$	48	$	2,059
	Six months ended June 30,
	2024						2023
	Continuing operations		Discontinued operations		Total		Continuing operations		Discontinued operations		Total
	(in thousands)
Cost of sales	$	310	$	79	$	389	$	218	$	21	$	239
Selling and marketing		791		59		850		1,148		12		1,160
General and administrative		1,602		140		1,742		2,146		36		2,182
Research and development	521		91			612		402		18		420
Total stock-based compensation expense	$	3,224	$	369	$	3,593	$	3,914	$	87	$	4,001

Schedule of Unamortized Compensation Cost and Weighted Average Service Period of Unvested Outstanding Awards

The following table presents the unamortized compensation cost and weighted average service period of all unvested outstanding awards as of June 30, 2024.

	Unamortized Compensation Costs		Weighted Average Service Period
	(in thousands)		(years)
Options	$	1,029		0.59
RSUs		3,869		1.78
Total unamortized compensation cost	$	4,898

Summary of Stock Option Activity under Incentive Plans

The following table summarizes stock option activity under the Company’s incentive plans:

	Number of Shares			Weighted Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life		Aggregate Intrinsic Value
						(in years)		(in thousands)
Options outstanding, December 31, 2023		2,383,641		$	2.86			$	—
Forfeited/Expired		(646,470	)	$	2.63
Options outstanding, June 30, 2024		1,737,171		$	2.94		5.6	$	—
Options vested and exercisable, June 30, 2024		1,597,645		$	2.79		5.5	$	—

Summary of Non Vested Stock Options

The following table summarizes the non-vested stock options that were outstanding as of June 30, 2024 and December 31, 2023:

	Number of Shares		Weighted Average Grant Date Fair Value
Non-vested Options, December 31, 2023		461,287	$	5.33
Non-vested Options, June 30, 2024		139,526	$	8.81

Summary of RSU Activity under Incentive Plans

The following table summarizes RSU activity under the Company’s incentive plans:

	Number of Shares			Weighted Average Grant Date Fair Value
RSUs outstanding, December 31, 2023		3,342,621		$	2.60
Granted		963,941		$	0.09
Vested		(1,117,092	)	$	2.93
Forfeited		(602,168	)	$	2.46
RSUs outstanding, June 30, 2024		2,587,302		$	1.55