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Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders’ Equity (Deficit) (unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Series A Convertible Preferred Stock
Series A Convertible Preferred Stock
Preferred Stock
Series X Convertible Preferred Stock
Series X Convertible Preferred Stock
Preferred Stock
Balance, beginning (in shares) at Dec. 31, 2023               2,104,472
Balance, beginning at Dec. 31, 2023 $ (8,210) $ 1 $ 433,220 $ (441,431)       $ 0
Balance, beginning (in shares) at Dec. 31, 2023   4,530,113            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock upon vesting of restricted stock units (in shares)   31,583            
Value of shares withheld to fund payroll taxes (39)   (39)          
Stock-based compensation 795   795          
Net loss (10,326)     (10,326)        
Balance, ending (in shares) at Mar. 31, 2024               2,104,472
Balance, ending at Mar. 31, 2024 (17,780) $ 1 433,976 (451,757)       $ 0
Balance, ending (in shares) at Mar. 31, 2024   4,561,696            
Balance, beginning (in shares) at Dec. 31, 2024         204,725 204,725 2,104,472 2,104,472
Balance, beginning at Dec. 31, 2024 $ 163,308 $ 1 774,565 (611,258)   $ 0   $ 0
Balance, beginning (in shares) at Dec. 31, 2024 10,946,635 10,946,635            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock upon conversion of Series X convertible preferred stock (in shares)   564,632           (1,129,264)
Issuance of common stock upon exercise of pre-funded warrants (in shares)   657,052            
Issuance of common stock upon exercise of options (in shares) 7,181 6,855            
Issuance of common stock upon exercise of options $ 113   113          
Issuance of common stock upon vesting of restricted stock units (in shares)   33,976            
Stock-based compensation 1,741   1,741          
Net loss (23,480)     (23,480)        
Balance, ending (in shares) at Mar. 31, 2025         204,725 204,725 975,208 975,208
Balance, ending at Mar. 31, 2025 $ 141,682 $ 1 $ 776,419 $ (634,738)   $ 0   $ 0
Balance, ending (in shares) at Mar. 31, 2025 12,209,150 12,209,150