UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021	[1]		60,433,455
Beginning balance at Dec. 31, 2021		$ (68,494)	$ 6	$ 540,823	$ (609,323)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and warrants - Note 14 (in shares)			136,370,064
Issuance of common stock and warrants – Note 14		189,412	$ 14	189,398
Stock-based compensation costs		391		391
Vesting of restricted stock units		37		37
Net loss		(22,060)			(22,060)
Ending balance (in shares) at Mar. 31, 2022			196,803,519
Ending balance at Mar. 31, 2022		99,286	$ 20	730,649	(631,383)
Beginning balance (in shares) at Dec. 31, 2021	[1]		60,433,455
Beginning balance at Dec. 31, 2021		(68,494)	$ 6	540,823	(609,323)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance – other		1,908
Net loss		(46,891)
Ending balance (in shares) at Sep. 30, 2022			199,770,659
Ending balance at Sep. 30, 2022		76,115	$ 20	732,309	(656,214)
Beginning balance (in shares) at Mar. 31, 2022			196,803,519
Beginning balance at Mar. 31, 2022		99,286	$ 20	730,649	(631,383)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and warrants – Note 14		(2,226)		(2,226)
Stock-based compensation costs		619		619
Stock issuance - other (in shares)			137,500
Stock issuance – other		158		158
Vesting of restricted stock units (in shares)			460,858
Vesting of restricted stock units		40		40
Net loss		(8,982)			(8,982)
Ending balance (in shares) at Jun. 30, 2022			197,401,877
Ending balance at Jun. 30, 2022		88,895	$ 20	729,240	(640,365)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and warrants – Note 14		(75)		(75)
Stock-based compensation costs		727		727
5-Year Private Warrants transferred to 5-Year Public Warrants		18		18
Stock issuance - other (in shares)			1,714,678
Stock issuance – other		1,749		1,749
Vesting of restricted stock units (in shares)			654,104
Vesting of restricted stock units		650		650
Net loss		(15,849)			(15,849)
Ending balance (in shares) at Sep. 30, 2022			199,770,659
Ending balance at Sep. 30, 2022		76,115	$ 20	732,309	(656,214)
Beginning balance (in shares) at Dec. 31, 2022	[1]		200,270,659
Beginning balance at Dec. 31, 2022		63,306	$ 20	733,437	(670,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation costs		608		608
5-Year Private Warrants transferred to 5-Year Public Warrants		531		531
Net loss		(13,909)			(13,909)
Ending balance (in shares) at Mar. 31, 2023			200,270,659
Ending balance at Mar. 31, 2023		50,536	$ 20	734,576	(684,060)
Beginning balance (in shares) at Dec. 31, 2022	[1]		200,270,659
Beginning balance at Dec. 31, 2022		63,306	$ 20	733,437	(670,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance – other		0
Net loss		(43,510)
Ending balance (in shares) at Sep. 30, 2023			202,132,839
Ending balance at Sep. 30, 2023		22,579	$ 20	736,220	(713,661)
Beginning balance (in shares) at Mar. 31, 2023			200,270,659
Beginning balance at Mar. 31, 2023		50,536	$ 20	734,576	(684,060)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation costs		952		952
5-Year Private Warrants transferred to 5-Year Public Warrants		15		15
Vesting of restricted stock units (in shares)			1,683,362
Net loss		(13,889)			(13,889)
Ending balance (in shares) at Jun. 30, 2023			201,954,021
Ending balance at Jun. 30, 2023		37,614	$ 20	735,543	(697,949)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation costs		640		640
5-Year Private Warrants transferred to 5-Year Public Warrants		37		37
Vesting of restricted stock units (in shares)			178,818
Vesting of restricted stock units		0		0
Net loss		(15,712)			(15,712)
Ending balance (in shares) at Sep. 30, 2023			202,132,839
Ending balance at Sep. 30, 2023		$ 22,579	$ 20	$ 736,220	$ (713,661)

[1] The opening balance of shares of common stock outstanding for both periods presented reflects an increase of 60 shares of common stock for an adjustment made to the Company’s share ledger by its recordkeeper related to a transaction that occurred in May 2020.