CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	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, 2023		54,745
Beginning balance at Dec. 31, 2023	$ 40,564	$ 1	$ 2,567	$ (48)	$ 324,191	$ 20	$ (286,167)
Common stock, beginning balance (in shares) at Dec. 31, 2023			256,688,304
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	1,761				1,761
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)			758,460
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	(145)		$ 8		(153)
Other comprehensive income (loss)	5					5
Net loss	(11,924)						(11,924)
Convertible preferred stock, ending balance (in shares) at Mar. 31, 2024		54,745
Ending balance at Mar. 31, 2024	30,261	$ 1	$ 2,575	(48)	325,799	25	(298,091)
Common stock, ending balance (in shares) at Mar. 31, 2024			257,446,764
Convertible preferred stock, beginning balance (in shares) at Dec. 31, 2023		54,745
Beginning balance at Dec. 31, 2023	40,564	$ 1	$ 2,567	(48)	324,191	20	(286,167)
Common stock, beginning balance (in shares) at Dec. 31, 2023			256,688,304
Increase (Decrease) in Stockholders' Equity
Net loss	(40,174)
Convertible preferred stock, ending balance (in shares) at Sep. 30, 2024		0
Ending balance at Sep. 30, 2024	40,630	$ 0	$ 2,904	(48)	364,092	23	(326,341)
Common stock, ending balance (in shares) at Sep. 30, 2024			290,384,252
Convertible preferred stock, beginning balance (in shares) at Mar. 31, 2024		54,745
Beginning balance at Mar. 31, 2024	30,261	$ 1	$ 2,575	(48)	325,799	25	(298,091)
Common stock, beginning balance (in shares) at Mar. 31, 2024			257,446,764
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	1,898				1,898
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)			95,860
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	45		$ 1		44
Series B convertible preferred stock reacquisition (in shares)		(54,745)
Series B convertible preferred stock reacquisition	0	$ (1)			1
Other comprehensive income (loss)	3					3
Net loss	(15,280)						(15,280)
Convertible preferred stock, ending balance (in shares) at Jun. 30, 2024		0
Ending balance at Jun. 30, 2024	16,927	$ 0	$ 2,576	(48)	327,742	28	(313,371)
Common stock, ending balance (in shares) at Jun. 30, 2024			257,542,624
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	1,892				1,892
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)			124,237
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	49		$ 1		48
Issuance of common stock & warrants for capital raises, net of issuance costs (in shares)			32,717,391
Issuance of common stock for capital raises, net of issuance costs	34,737		$ 327		34,410
Other comprehensive income (loss)	(5)					(5)
Net loss	(12,970)						(12,970)
Convertible preferred stock, ending balance (in shares) at Sep. 30, 2024		0
Ending balance at Sep. 30, 2024	40,630	$ 0	$ 2,904	(48)	364,092	23	(326,341)
Common stock, ending balance (in shares) at Sep. 30, 2024			290,384,252
Convertible preferred stock, beginning balance (in shares) at Dec. 31, 2024		0
Beginning balance at Dec. 31, 2024	$ 29,632	$ 0	$ 2,915	(48)	366,938	48	(340,221)
Common stock, beginning balance (in shares) at Dec. 31, 2024	291,367,558		291,489,058
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	$ 1,885				1,885
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)			660,917
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	(245)		$ 7		(252)
Other comprehensive income (loss)	(8)					(8)
Net loss	(15,350)						(15,350)
Convertible preferred stock, ending balance (in shares) at Mar. 31, 2025		0
Ending balance at Mar. 31, 2025	15,914	$ 0	$ 2,922	(48)	368,571	40	(355,571)
Common stock, ending balance (in shares) at Mar. 31, 2025			292,149,975
Convertible preferred stock, beginning balance (in shares) at Dec. 31, 2024		0
Beginning balance at Dec. 31, 2024	$ 29,632	$ 0	$ 2,915	(48)	366,938	48	(340,221)
Common stock, beginning balance (in shares) at Dec. 31, 2024	291,367,558		291,489,058
Increase (Decrease) in Stockholders' Equity
Net loss	$ (50,140)
Convertible preferred stock, ending balance (in shares) at Sep. 30, 2025		0
Ending balance at Sep. 30, 2025	$ 3,533	$ 0	$ 3,125	(48)	390,759	58	(390,361)
Common stock, ending balance (in shares) at Sep. 30, 2025	312,319,623		312,441,123
Convertible preferred stock, beginning balance (in shares) at Mar. 31, 2025		0
Beginning balance at Mar. 31, 2025	$ 15,914	$ 0	$ 2,922	(48)	368,571	40	(355,571)
Common stock, beginning balance (in shares) at Mar. 31, 2025			292,149,975
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	1,844				1,844
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)			163,586
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	61		$ 2		59
Other comprehensive income (loss)	(28)					(28)
Net loss	(14,739)						(14,739)
Convertible preferred stock, ending balance (in shares) at Jun. 30, 2025		0
Ending balance at Jun. 30, 2025	3,052	$ 0	$ 2,924	(48)	370,474	12	(370,310)
Common stock, ending balance (in shares) at Jun. 30, 2025			292,313,561
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	1,976				1,976
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)			127,562
Issuance of common stock for stock option exercises and restricted stock unit vesting, net	56		$ 1		55
Issuance of common stock & warrants for capital raises, net of issuance costs (in shares)			20,000,000
Issuance of common stock for capital raises, net of issuance costs	18,454		$ 200		18,254
Other comprehensive income (loss)	46					46
Net loss	(20,051)						(20,051)
Convertible preferred stock, ending balance (in shares) at Sep. 30, 2025		0
Ending balance at Sep. 30, 2025	$ 3,533	$ 0	$ 3,125	$ (48)	$ 390,759	$ 58	$ (390,361)
Common stock, ending balance (in shares) at Sep. 30, 2025	312,319,623		312,441,123