v3.26.1
Condensed Consolidated Statement of Changes in Convertible Preferred Stock and Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Series X Non-Voting Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Loss [Member]
Accumulated Deficit [Member]
Beginning balance, shares at Dec. 31, 2024     21,666,012      
Beginning balance at Dec. 31, 2024 $ 54,392   $ 108 $ 360,697 $ (18) $ (351,400)
Beginning balance, shares at Dec. 31, 2024   12,232        
Beginning balance at Dec. 31, 2024   $ 45,005        
Issuance of common stock, net of offering costs 738     738    
Issuance of common stock, net of offering costs, shares     317,772      
Stock-based compensation expense 264     264    
Exercise of stock options, shares     21,533      
Unrealized gain (loss) on investments (45)       (45)  
Foreign currency translation adjustments 31       31  
Net loss (5,501)         (5,501)
Ending balance at Mar. 31, 2025 49,879   $ 108 361,699 (32) (356,901)
Ending balance, shares at Mar. 31, 2025     22,005,317      
Ending balance at Mar. 31, 2025   $ 45,005        
Ending balance, shares at Mar. 31, 2025   12,232        
Beginning balance, shares at Dec. 31, 2024     21,666,012      
Beginning balance at Dec. 31, 2024 54,392   $ 108 360,697 (18) (351,400)
Beginning balance, shares at Dec. 31, 2024   12,232        
Beginning balance at Dec. 31, 2024   $ 45,005        
Unrealized gain (loss) on investments (33)          
Net loss (12,323)          
Ending balance at Jun. 30, 2025 48,013   $ 131 366,644 (44) (363,723)
Ending balance, shares at Jun. 30, 2025     23,046,121      
Ending balance at Jun. 30, 2025   $ 45,005        
Ending balance, shares at Jun. 30, 2025   12,232        
Beginning balance, shares at Mar. 31, 2025     22,005,317      
Beginning balance at Mar. 31, 2025 49,879   $ 108 361,699 (32) (356,901)
Beginning balance, shares at Mar. 31, 2025   12,232        
Beginning balance at Mar. 31, 2025   $ 45,005        
Issuance of common stock, net of offering costs 33     33    
Issuance of common stock, net of offering costs, shares     16,127      
Issuance of warrants 481     481    
Stock-based compensation expense 256     256    
Issuance of common stock in connection with warrant exercises 1,595   $ 1 1,594    
Issuance of common stock in connection with warrant exercises, shares     1,035,758      
Warrant exchanges 2,984     2,984    
Common Stock to be Issued upon exercises of warrants 22   $ 22      
Exercise of stock options 1     1    
Exercise of stock options, shares     (11,081)      
Common stock issuance cost (404)     (404)    
Unrealized gain (loss) on investments 12       12  
Foreign currency translation adjustments (24)       (24)  
Net loss (6,822)         (6,822)
Ending balance at Jun. 30, 2025 $ 48,013   $ 131 366,644 (44) (363,723)
Ending balance, shares at Jun. 30, 2025     23,046,121      
Ending balance at Jun. 30, 2025   $ 45,005        
Ending balance, shares at Jun. 30, 2025   12,232        
Beginning balance, shares at Dec. 31, 2025 27,550,222   27,550,222      
Beginning balance at Dec. 31, 2025 $ 16,918   $ 113 373,133 (62) (401,271)
Beginning balance, shares at Dec. 31, 2025   12,232        
Beginning balance at Dec. 31, 2025   $ 45,005        
Issuance of common stock, net of offering costs 355   $ 1 354    
Issuance of common stock, net of offering costs, shares     488,810      
Stock-based compensation expense 156     156    
Net loss (5,838)         (5,838)
Ending balance at Mar. 31, 2026 $ 11,591   $ 114 373,643 (62) (407,109)
Ending balance, shares at Mar. 31, 2026     28,039,032      
Ending balance at Mar. 31, 2026   $ 45,005        
Ending balance, shares at Mar. 31, 2026   12,232        
Beginning balance, shares at Dec. 31, 2025 27,550,222   27,550,222      
Beginning balance at Dec. 31, 2025 $ 16,918   $ 113 373,133 (62) (401,271)
Beginning balance, shares at Dec. 31, 2025   12,232        
Beginning balance at Dec. 31, 2025   $ 45,005        
Exercise of stock options, shares 0          
Unrealized gain (loss) on investments $ (12)          
Net loss (12,213)          
Ending balance at Jun. 30, 2026 $ 55,204   $ 172 423,580 (69) (413,484)
Ending balance, shares at Jun. 30, 2026 85,767,032   85,767,032      
Ending balance at Jun. 30, 2026   $ 45,005        
Ending balance, shares at Jun. 30, 2026   12,232        
Beginning balance, shares at Mar. 31, 2026     28,039,032      
Beginning balance at Mar. 31, 2026 $ 11,591   $ 114 373,643 (62) (407,109)
Beginning balance, shares at Mar. 31, 2026   12,232        
Beginning balance at Mar. 31, 2026   $ 45,005        
Issuance of common stock, net of offering costs 49,831   $ 58 49,773    
Issuance of common stock, net of offering costs, shares     57,728,000      
Stock-based compensation expense 164     164    
Unrealized gain (loss) on investments (12)       (12)  
Foreign currency translation adjustments 5       5  
Net loss (6,375)         (6,375)
Ending balance at Jun. 30, 2026 $ 55,204   $ 172 $ 423,580 $ (69) $ (413,484)
Ending balance, shares at Jun. 30, 2026 85,767,032   85,767,032      
Ending balance at Jun. 30, 2026   $ 45,005        
Ending balance, shares at Jun. 30, 2026   12,232