v3.25.1
Segments - Significant Expense and Asset Categories (Details) - Business Operating Segment [Member] - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Segment Reporting Information [Line Items]      
Research and development $ 6,485 $ 8,054  
General and administrative 1,412 1,594  
Total operating expenses 7,897 9,648  
Total operating loss (7,897) (9,648)  
Interest income 35 80  
Interest expense (1,744) (1,052)  
Change in fair value of derivatives (25) (869)  
Total other income (expense) (1,734) (1,841)  
Net loss (9,631) (11,489)  
Preferred stock dividends 26 (8)  
Net loss applicable to common stockholders (9,605) $ (11,497)  
Cash and cash equivalents $ 7,431   $ 15,120