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	$ 1	3,742			3,743
Share-based compensation expense, shares	628
Exercise of options		62			62
Exercise of options, shares	84
Sales of common stock, net and warrants	$ 10	20,550			20,560
Sales of common stock, net, shares	10,426
Net loss				(26,313)	(26,313)
Other comprehensive income (loss)			(53)		(53)
Balance at Mar. 31, 2024	$ 206	885,119	157	(791,679)	93,803
Balance, shares at Mar. 31, 2024	205,874
Balance at Dec. 31, 2024	$ 225	910,825		(862,281)	48,769
Balance, shares at Dec. 31, 2024	224,993
Share-based compensation expense		1,921			1,921
Share-based compensation expense, shares	464
Sales of common stock, net and warrants	$ 6	9,188			9,194
Sales of common stock, net, shares	5,913
Net loss				(28,779)	(28,779)
Other comprehensive income (loss)			119		119
Conversions of notes payable	$ 14	21,966			21,980
Conversions of notes payable, shares	14,070
Balance at Mar. 31, 2025	$ 245	$ 943,900	$ 119	$ (891,060)	$ 53,204
Balance, shares at Mar. 31, 2025	245,440