Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Schedule of Stock-based Compensation Expense

The following table sets forth the Company’s stock-based compensation expense for the periods indicated (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Equity Classified Awards
Cost of production	$	25	$	208	$	37	$	599
General and administrative		4,239		3,910		11,480		10,992
Other		(132)		243		1,235		1,034
Total equity classified awards		4,132		4,361		12,752		12,625
Liability Classified Awards
General and administrative		—		(267)		—		(460)
Other		—		126		—		—
Total liability classified awards		—		(141)		—		(460)
Total stock-based compensation	$	4,132	$	4,220	$	12,752	$	12,165

Schedule Stock Option Award Activity

Stock option activity under the Company’s stock incentive plans and changes during the nine months ended September 30, 2023, were as follows:

				Weighted-
				Average
		Weighted-		Remaining
		Average		Contractual		Aggregate
	Number of	Exercise		Term		Intrinsic
	Options	Price (1)		(years)		Value
Options outstanding at December 31, 2022	5,945,321	$	4.65		9.1	$	—
Granted	3,178,148	$	1.69			$	—
Canceled or forfeited	(769,529)	$	3.79			$	—
Exercised	—	$	—			$	—
Options outstanding at September 30, 2023	8,353,940	$	3.61		8.7	$	—
Options vested and expected to vest at September 30, 2023	3,332,229	$	4.86		7.2	$	—

(1) The exercise price of options outstanding range from $1.59 to $876.00 as of September 30, 2023. The higher end of the range is due to the impact of several reverse stock splits during the years 2015 to 2018.

Schedule of Non-vested Restricted Stock Awards

Non-vested restricted stock awards and the changes during the nine months ended September 30, 2023, were as follows:

		Weighted-
		Average
	Number of	Grant-Date
	Shares	Fair Value
Outstanding at December 31, 2022	5,254,457	$	3.94
Granted	3,897,010	$	1.47
Vested and issued	(2,404,742)	$	4.08
Canceled or forfeited	(823,428)	$	3.44
Non-vested at September 30, 2023	5,923,297	$	—