CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Preferred Stock Series B Convertible Preferred Stock	Common Stock	Treasury Stock	Additional Paid in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Convertible preferred stock, beginning balance (in shares) at Dec. 31, 2022			54,745
Common stock, beginning balance (in shares) at Dec. 31, 2022				221,721,182
Beginning balance at Dec. 31, 2022	$ 73,981		$ 1	$ 2,217	$ (48)	$ 294,874	$ 26	$ (223,089)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	9,217					9,217
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)				488,166
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	124			$ 5		119
Issuance of Common Stock for capital raises, net (in shares)				34,478,956
Issuance of Common Stock for capital raises, net	20,326			$ 345		19,981
Other comprehensive income (loss)	(6)						(6)
Net loss	$ (63,078)							(63,078)
Convertible preferred stock, ending balance (in shares) at Dec. 31, 2023	54,745		54,745
Common stock, ending balance (in shares) at Dec. 31, 2023	256,566,804			256,688,304
Ending balance at Dec. 31, 2023	$ 40,564		$ 1	$ 2,567	(48)	324,191	20	(286,167)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	7,427					7,427
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)				1,027,025
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	(70)			$ 10		(80)
Issuance of Common Stock for capital raises, net (in shares)				33,773,729
Issuance of Common Stock for capital raises, net	35,737			$ 338		35,399
Series B Convertible Preferred Stock reacquisition (in shares)		(54,745)
Series B Convertible Preferred Stock reacquisition	0	$ (1)				1
Other comprehensive income (loss)	28						28
Net loss	$ (54,054)							(54,054)
Convertible preferred stock, ending balance (in shares) at Dec. 31, 2024	0		0
Common stock, ending balance (in shares) at Dec. 31, 2024	291,367,558			291,489,058
Ending balance at Dec. 31, 2024	$ 29,632		$ 0	$ 2,915	$ (48)	$ 366,938	$ 48	$ (340,221)