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STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Treasury Stock
Beginning balance at Dec. 31, 2022 $ 60,433 $ 1 $ 489,696 $ (428,312) $ (952)
Beginning balance, Shares at Dec. 31, 2022   3,725,689      
Stock option exercises $ 31   31    
Stock option exercises, Shares 3,196 3,196      
Issuance of common stock under employee stock purchase plan $ 370   370    
Issuance of common stock under employee stock purchase plan, Shares   18,101      
Share-based compensation expense 14,040   14,040    
Restricted stock units vested, Shares   46,893      
Proceeds from issuance of common stock, net of issuance cost 5,306   5,306    
Proceeds from issuance of common stock, net of issuance cost, Shares   397,174      
Net Income (Loss) (61,319)     (61,319)  
Ending balance at Dec. 31, 2023 $ 18,861 $ 1 509,443 (489,631) (952)
Ending balance, Shares at Dec. 31, 2023 4,191,053 4,191,053      
Stock option exercises, Shares 0        
Issuance of common stock under employee stock purchase plan $ 249   249    
Issuance of common stock under employee stock purchase plan, Shares   23,831      
Share-based compensation expense 12,604   12,604    
Proceeds from issuance of common stock and warrants through underwritten offering, net of issuance cost 4,610   4,610    
Proceeds from issuance of common stock and warrants through underwritten offering, net of issuance cost, Shares   2,500,000      
Proceeds from issuance of common stock to collaboration partners and licensees 905   905    
Proceeds from issuance of common stock to collaboration partners and licensees, Shares   97,360      
Proceeds from issuance of common stock through ATM facility, net of issuance cost 11,697   11,697    
Proceeds from issuance of common stock through ATM facility, net of issuance cost, Shares   1,290,354      
Restricted stock units vested, Shares   102,132      
Proceeds from issuance of common stock, net of issuance cost 300   300    
Proceeds from issuance of common stock, net of issuance cost, Shares   25,000      
Net Income (Loss) 7,167     7,167  
Ending balance at Dec. 31, 2024 $ 56,393 $ 1 $ 539,808 $ (482,464) $ (952)
Ending balance, Shares at Dec. 31, 2024 8,229,730 8,229,730