v3.26.3
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Common Stock
Treasury Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Common stock, beginning balance (in shares) at Dec. 31, 2024   291,489,058        
Beginning balance at Dec. 31, 2024 $ 29,632 $ 2,915 $ (48) $ 366,938 $ 48 $ (340,221)
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)
Common stock, ending balance (in shares) at Mar. 31, 2025   292,149,975        
Ending balance at Mar. 31, 2025 15,914 $ 2,922 (48) 368,571 40 (355,571)
Common stock, beginning balance (in shares) at Dec. 31, 2024   291,489,058        
Beginning balance at Dec. 31, 2024 29,632 $ 2,915 (48) 366,938 48 (340,221)
Increase (Decrease) in Stockholders' Equity            
Unrealized gain (loss) on available-for-sale debt securities 0          
Net loss (50,140)          
Common stock, ending balance (in shares) at Sep. 30, 2025   312,441,123        
Ending balance at Sep. 30, 2025 3,533 $ 3,125 (48) 390,759 58 (390,361)
Common stock, beginning balance (in shares) at Mar. 31, 2025   292,149,975        
Beginning balance at Mar. 31, 2025 15,914 $ 2,922 (48) 368,571 40 (355,571)
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)
Common stock, ending balance (in shares) at Jun. 30, 2025   292,313,561        
Ending balance at Jun. 30, 2025 3,052 $ 2,924 (48) 370,474 12 (370,310)
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    
Unrealized gain (loss) on available-for-sale debt securities 0          
Other comprehensive income (loss) 46       46  
Net loss (20,051)         (20,051)
Common stock, ending balance (in shares) at Sep. 30, 2025   312,441,123        
Ending balance at Sep. 30, 2025 $ 3,533 $ 3,125 (48) 390,759 58 (390,361)
Common stock, beginning balance (in shares) at Dec. 31, 2025 312,379,972 312,501,472        
Beginning balance at Dec. 31, 2025 $ (12,166) $ 3,125 (48) 392,763 61 (408,067)
Increase (Decrease) in Stockholders' Equity            
Stock-based compensation expense 2,061     2,061    
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)   938,927        
Issuance of common stock for stock option exercises and restricted stock unit vesting, net 88 $ 9   79    
Issuance of common stock & warrants for capital raises, net of issuance costs (in shares)   15,000,000        
Issuance of common stock for capital raises, net of issuance costs 20,721 $ 150   20,571    
Issuance of common stock upon exercise of warrants (in shares)   10,000,000        
Issuance of common stock upon exercise of warrants 14,175 $ 100   14,075    
Other comprehensive income (loss) 103       103  
Net loss (19,177)         (19,177)
Common stock, ending balance (in shares) at Mar. 31, 2026   338,440,399        
Ending balance at Mar. 31, 2026 $ 5,805 $ 3,384 (48) 429,549 164 (427,244)
Common stock, beginning balance (in shares) at Dec. 31, 2025 312,379,972 312,501,472        
Beginning balance at Dec. 31, 2025 $ (12,166) $ 3,125 (48) 392,763 61 (408,067)
Increase (Decrease) in Stockholders' Equity            
Unrealized gain (loss) on available-for-sale debt securities (93)          
Net loss $ (47,653)          
Common stock, ending balance (in shares) at Sep. 30, 2026 339,306,603 339,428,103        
Ending balance at Sep. 30, 2026 $ (17,681) $ 3,392 (48) 434,548 146 (455,719)
Common stock, beginning balance (in shares) at Mar. 31, 2026   338,440,399        
Beginning balance at Mar. 31, 2026 5,805 $ 3,384 (48) 429,549 164 (427,244)
Increase (Decrease) in Stockholders' Equity            
Stock-based compensation expense 1,880     1,880    
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)   725,994        
Issuance of common stock for stock option exercises and restricted stock unit vesting, net 587 $ 6   581    
Other comprehensive income (loss) 49       49  
Net loss (24,877)         (24,877)
Common stock, ending balance (in shares) at Jun. 30, 2026   339,166,393        
Ending balance at Jun. 30, 2026 (16,556) $ 3,390 (48) 432,010 213 (452,121)
Increase (Decrease) in Stockholders' Equity            
Stock-based compensation expense 2,363     2,363    
Issuance of common stock for stock option exercises and restricted stock unit vesting, net (in shares)   261,710        
Issuance of common stock for stock option exercises and restricted stock unit vesting, net 177 $ 2   175    
Unrealized gain (loss) on available-for-sale debt securities (93)       (93)  
Other comprehensive income (loss) 26       26  
Net loss $ (3,598)         (3,598)
Common stock, ending balance (in shares) at Sep. 30, 2026 339,306,603 339,428,103        
Ending balance at Sep. 30, 2026 $ (17,681) $ 3,392 $ (48) $ 434,548 $ 146 $ (455,719)