Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2023	$ 195	$ 860,765	$ 210	$ (765,366)	$ 95,804
Balance, shares at Dec. 31, 2023	194,736
Share-based compensation expense	$ 2	7,094			7,096
Share-based compensation expense, shares	2,164
Sales of common stock, net and warrants	$ 15	26,084			26,099
Sales of common stock, net and warrants, shares	14,977
Net loss				(50,243)	(50,243)
Other comprehensive income			(109)		(109)
Exercise of options		62			62
Exercise of options, shares	84
Balance at Jun. 30, 2024	$ 212	894,005	101	(815,609)	78,709
Balance, shares at Jun. 30, 2024	211,961
Balance at Mar. 31, 2024	$ 206	885,119	157	(791,679)	93,803
Balance, shares at Mar. 31, 2024	205,874
Share-based compensation expense	$ 1	3,352			3,353
Share-based compensation expense, shares	1,536
Sales of common stock, net and warrants	$ 5	5,534			5,539
Sales of common stock, net and warrants, shares	4,551
Net loss				(23,930)	(23,930)
Other comprehensive income			(56)		(56)
Balance at Jun. 30, 2024	$ 212	894,005	101	(815,609)	78,709
Balance, shares at Jun. 30, 2024	211,961
Balance at Dec. 31, 2024	$ 225	910,825		(862,281)	48,769
Balance, shares at Dec. 31, 2024	224,993
Share-based compensation expense		3,851			3,851
Share-based compensation expense, shares	2,323
Sales of common stock, net and warrants	$ 39	44,955			44,994
Sales of common stock, net and warrants, shares	36,632
Net loss				(43,008)	(43,008)
Other comprehensive income			518		518
Conversions of notes payable	$ 14	21,966			21,980
Conversions of notes payable, shares	14,070
Balance at Jun. 30, 2025	$ 278	981,597	518	(905,289)	77,104
Balance, shares at Jun. 30, 2025	278,018
Balance at Mar. 31, 2025	$ 245	943,900	119	(891,060)	53,204
Balance, shares at Mar. 31, 2025	245,440
Share-based compensation expense		1,930			1,930
Share-based compensation expense, shares	1,859
Sales of common stock, net and warrants	$ 33	35,767			35,800
Sales of common stock, net and warrants, shares	30,719
Net loss				(14,229)	(14,229)
Other comprehensive income			399		399
Balance at Jun. 30, 2025	$ 278	$ 981,597	$ 518	$ (905,289)	$ 77,104
Balance, shares at Jun. 30, 2025	278,018