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Condensed Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Preferred Stock [Member]
Convertible Preferred Stock [Member]
Beginning Balance at Dec. 31, 2023 $ 122,886 $ 3 $ 1,084,562 $ 68 $ (961,747) $ 0
Beginning Balance (shares) at Dec. 31, 2023   3,354,000       0
Issuance of common stock through employee stock purchase plan 2,080 $ 1 2,079      
Issuance of common stock through employee stock purchase plan (shares)   52,000        
Issuance of common stock for settlement of RSUs 295   295      
Issuance of common stock for settlement of RSUs (shares)   40,000        
Stock option exercises 6   6      
Stock-based compensation expense 8,203   8,203      
Unrealized gain on available-for-sale securities (326)     (326)    
Net Income (Loss) (39,944)       (39,944)  
Ending Balance at Mar. 31, 2024 93,200 $ 4 1,095,145 (258) (1,001,691) $ 0
Ending Balance (shares) at Mar. 31, 2024   3,446,000       0
Beginning Balance at Dec. 31, 2023 122,886 $ 3 1,084,562 68 (961,747) $ 0
Beginning Balance (shares) at Dec. 31, 2023   3,354,000       0
Unrealized gain on available-for-sale securities 284          
Net Income (Loss) (102,338)          
Ending Balance at Sep. 30, 2024 47,822 $ 4 1,111,551 352 (1,064,085) $ 0
Ending Balance (shares) at Sep. 30, 2024   3,503,000       0
Beginning Balance at Mar. 31, 2024 93,200 $ 4 1,095,145 (258) (1,001,691) $ 0
Beginning Balance (shares) at Mar. 31, 2024   3,446,000       0
Issuance of common stock for settlement of RSUs (shares)   21,000        
Stock option exercises 77   77      
Stock option exercises (shares)   5,000        
Stock-based compensation expense 9,820   9,820      
Unrealized gain on available-for-sale securities (44)     (44)    
Net Income (Loss) (34,454)       (34,454)  
Ending Balance at Jun. 30, 2024 68,599 $ 4 1,105,042 (302) (1,036,145) $ 0
Ending Balance (shares) at Jun. 30, 2024   3,472,000       0
Issuance of common stock through employee stock purchase plan 121   121      
Issuance of common stock through employee stock purchase plan (shares)   18,000        
Issuance of common stock for settlement of RSUs (shares)   13,000        
Stock-based compensation expense 6,388   6,388      
Unrealized gain on available-for-sale securities 654     654    
Net Income (Loss) (27,940)       (27,940)  
Ending Balance at Sep. 30, 2024 47,822 $ 4 1,111,551 352 (1,064,085) $ 0
Ending Balance (shares) at Sep. 30, 2024   3,503,000       0
Beginning Balance at Dec. 31, 2024 26,819 $ 4 1,116,496 42 (1,089,723) $ 0
Beginning Balance (shares) at Dec. 31, 2024   3,530,000       0
Issuance of Series A convertible preferred stock, net of issuance costs (in shares)           863,000
Issuance of Series A convertible preferred stock, net of issuance costs 161,071         $ 161,071
Conversion of Stock, Amount Issued   $ 14 157,216     $ (157,230)
Conversion of Stock, Shares Converted   14,046,000       (842,000)
Issuance of common stock through employee stock purchase plan 408   408      
Issuance of common stock through employee stock purchase plan (shares)   60,000        
Issuance of common stock for settlement of RSUs (shares)   86,000        
Stock-based compensation expense 2,977   2,977      
Unrealized gain on available-for-sale securities 46     46    
Issuance of common stock warrant, net of issuance costs 4,330   4,330      
Net Income (Loss) (25,783)   0   (25,783)  
Ending Balance at Mar. 31, 2025 169,868 $ 18 1,281,427 88 (1,115,506) $ 3,841
Ending Balance (shares) at Mar. 31, 2025   17,722,000       21,000
Beginning Balance at Dec. 31, 2024 26,819 $ 4 1,116,496 42 (1,089,723) $ 0
Beginning Balance (shares) at Dec. 31, 2024   3,530,000       0
Conversion of Stock, Shares Converted   14,046,000        
Unrealized gain on available-for-sale securities 115          
Net Income (Loss) (62,162)          
Ending Balance at Sep. 30, 2025 142,365 $ 18 1,290,234 157 (1,151,885) $ 3,841
Ending Balance (shares) at Sep. 30, 2025   17,809,000       21,000
Beginning Balance at Mar. 31, 2025 169,868 $ 18 1,281,427 88 (1,115,506) $ 3,841
Beginning Balance (shares) at Mar. 31, 2025   17,722,000       21,000
Issuance of common stock for settlement of RSUs (shares)   44,000        
Stock-based compensation expense 3,496   3,496      
Unrealized gain on available-for-sale securities (39)     (39)    
Net Income (Loss) (18,541)       (18,541)  
Ending Balance at Jun. 30, 2025 154,784 $ 18 1,284,923 49 (1,134,047) $ 3,841
Ending Balance (shares) at Jun. 30, 2025   17,766,000       21,000
Issuance of common stock through employee stock purchase plan 231   231      
Issuance of common stock through employee stock purchase plan (shares)   27,000        
Issuance of common stock for settlement of RSUs (shares)   16,000        
Stock-based compensation expense 5,080   5,080      
Unrealized gain on available-for-sale securities 108     108    
Net Income (Loss) (17,838)       (17,838)  
Ending Balance at Sep. 30, 2025 $ 142,365 $ 18 $ 1,290,234 $ 157 $ (1,151,885) $ 3,841
Ending Balance (shares) at Sep. 30, 2025   17,809,000       21,000