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CONDENSED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
 [1]
Preferred Stock
Common Stock
Additional Paid-In Capital
Additional Paid-In Capital
Cumulative Effect, Period of Adoption, Adjustment
 [1]
Accumulated Other Comprehensive Loss
Accumulated Deficit
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
 [1]
Balance, beginning (in shares) at Dec. 31, 2022     61 44,677          
Balance, beginning at Dec. 31, 2022 $ 106,343     $ 4 $ 404,834   $ (395) $ (298,100)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Stock-based compensation 1,064       1,064        
Other comprehensive gain (loss) 319           319    
Net loss (11,223)             (11,223)  
Balance, ending (in shares) at Mar. 31, 2023     61 44,677          
Balance, ending at Mar. 31, 2023 96,503     $ 4 405,898   (76) (309,323)  
Balance, beginning (in shares) at Dec. 31, 2022     61 44,677          
Balance, beginning at Dec. 31, 2022 106,343     $ 4 404,834   (395) (298,100)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net loss (32,104)                
Balance, ending (in shares) at Sep. 30, 2023     61 44,677          
Balance, ending at Sep. 30, 2023 77,827     $ 4 408,434   (407) (330,204)  
Balance, beginning (in shares) at Mar. 31, 2023     61 44,677          
Balance, beginning at Mar. 31, 2023 96,503     $ 4 405,898   (76) (309,323)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Stock-based compensation 1,581       1,581        
Other comprehensive gain (loss) (355)           (355)    
Net loss (11,150)             (11,150)  
Balance, ending (in shares) at Jun. 30, 2023     61 44,677          
Balance, ending at Jun. 30, 2023 86,579     $ 4 407,479   (431) (320,473)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Stock-based compensation 955       955        
Other comprehensive gain (loss) 24           24    
Net loss (9,731)             (9,731)  
Balance, ending (in shares) at Sep. 30, 2023     61 44,677          
Balance, ending at Sep. 30, 2023 77,827     $ 4 408,434   (407) (330,204)  
Balance, beginning (in shares) at Dec. 31, 2023     61 44,677          
Balance, beginning at Dec. 31, 2023 69,739 $ 0   $ 4 409,343 $ (793) (67) (339,541) $ 793
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Stock-based compensation 1,124       1,124        
Issuance of common stock upon exercise of stock options (in shares)       33          
Issuance of common stock upon exercise of stock options 107       107        
Other comprehensive gain (loss) (65)           (65)    
Net loss (10,011)             (10,011)  
Balance, ending (in shares) at Mar. 31, 2024     61 44,710          
Balance, ending at Mar. 31, 2024 $ 60,894     $ 4 409,781   (132) (348,759)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Accounting Standards Update [Extensible Enumeration] us-gaap:AccountingStandardsUpdate202006Member                
Balance, beginning (in shares) at Dec. 31, 2023     61 44,677          
Balance, beginning at Dec. 31, 2023 $ 69,739 $ 0   $ 4 409,343 $ (793) (67) (339,541) $ 793
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net loss (33,644)                
Balance, ending (in shares) at Sep. 30, 2024     61 48,731          
Balance, ending at Sep. 30, 2024 49,392     $ 5 421,697   82 (372,392)  
Balance, beginning (in shares) at Mar. 31, 2024     61 44,710          
Balance, beginning at Mar. 31, 2024 60,894     $ 4 409,781   (132) (348,759)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Issuance of common stock, net of expenses (in shares) [2]       792          
Issuance of common stock, net of expenses [2] 1,805     $ 1 1,804        
Stock-based compensation 1,179       1,179        
Issuance of common stock upon exercise of stock options (in shares)       100          
Issuance of common stock upon exercise of stock options 253       253        
Other comprehensive gain (loss) 35           35    
Net loss (11,778)             (11,778)  
Balance, ending (in shares) at Jun. 30, 2024     61 45,602          
Balance, ending at Jun. 30, 2024 52,388     $ 5 413,017   (97) (360,537)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Issuance of common stock, net of expenses (in shares) [3]       3,129          
Issuance of common stock, net of expenses [3] 7,427       7,427        
Stock-based compensation 1,253       1,253        
Other comprehensive gain (loss) 179           179    
Net loss (11,855)             (11,855)  
Balance, ending (in shares) at Sep. 30, 2024     61 48,731          
Balance, ending at Sep. 30, 2024 $ 49,392     $ 5 $ 421,697   $ 82 $ (372,392)  
[1] See Note 2.
[2] Net of expenses of $197,000.
[3] Net of expenses of $285,000.