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Condensed Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Series X1 Non-voting Convertible Preferred Stock [Member]
Series X Non-Voting Convertible Preferred Stock [Member]
Beginning Balance at Dec. 31, 2022 $ 84,183 $ 14 $ 287,034 $ (202,865)    
Beginning Balance, Shares at Dec. 31, 2022   13,776,788     117,970 6,204
Stock-based compensation 1,381   1,381      
Net loss and comprehensive loss (10,772)     (10,772)    
Ending Balance at Mar. 31, 2023 74,792 $ 14 288,415 (213,637)    
Ending Balance, Shares at Mar. 31, 2023   13,776,788     117,970 6,204
Beginning Balance at Dec. 31, 2023 7,208 $ 24 326,586 (319,402)    
Beginning Balance, Shares at Dec. 31, 2023   24,213,130     110,086 4,422
Issuance of common stock in connection with exercise of pre-funded warrants, Shares   600,000        
Issuance of common stock in connection with exercise of pre-funded warrants, Value 1 $ 1        
Stock-based compensation 1,694   1,694      
Net loss and comprehensive loss (23,631)     (23,631)    
Ending Balance at Mar. 31, 2024 $ (14,728) $ 25 $ 328,280 $ (343,033)    
Ending Balance, Shares at Mar. 31, 2024   24,813,130     110,086 4,422