STOCK BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2024

STOCK BASED COMPENSATION

Schedule of option activity

The option activity of the Plans for the three months ended March 31, 2024, is as follows (shares in thousands):

				Weighted-Average
		Weighted-Average		Remaining	Aggregate
	Number of	Exercise Price		Contractual Term	Intrinsic Value
	Shares	per Share		(in years)	(in thousands)
Outstanding at January 1, 2024	6,164	$	1.83	4.97	$	140
Forfeited/expired	(177)	$	1.40			—
Outstanding at March 31, 2024	5,987	$	1.83	4.69		210
Options vested at March 31, 2024	5,804	$	1.85	4.64		210
Options vested or expected to vest at March 31, 2024	5,986	$	1.83	4.69		210

Schedule of RSU activity under the Plan

The activity for stock subject to vesting as of March 31, 2024, is as follows (shares in thousands):

	Shares Subject	Weighted-Average
	to Vesting	Grant Date Fair Value
Balance of unvested shares as of January 1, 2024	6	$ 8.78
Vested	(6)	$ 8.78
Balance of unvested shares as of March 31, 2024	—	$ 8.78

Schedule of RSU activity

RSU activity under the 2020 Plan for the three months ended March 31, 2024, is as follows (shares in thousands):

	Shares Subject	Weighted-Average
	to Vesting	Grant Date Fair Value
Balance of unvested shares as of January 1, 2024	23,055	$ 2.84
Granted	9,008	$ 0.76
Vested	(4,964)	$ 1.76
Cancelled/Forfeited	(1,522)	$ 3.51
Balance of unvested shares as of March 31, 2024	25,577	$ 2.28

Schedule of stock-based compensation expense

Total stock-based compensation expense related to all of the Company’s stock-based awards granted is reported in the condensed consolidated statements of operations as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Research and development	$	3,503	$	4,277
General and administrative expense		3,178		3,968
Sales and marketing expense		589		388
Cost of sales		568		680
Total stock-based compensation expense	$	7,838	$	9,313