v3.26.1
Condensed Consolidated Statements of Stockholders' Equity (Current Period Unaudited) - USD ($)
$ in Thousands
Total
At The Market program
Registered direct offering
Preferred Stock [Member]
Convertible Preferred Stock
Preferred Stock [Member]
At The Market program
Convertible Preferred Stock
Preferred Stock [Member]
Registered direct offering
Convertible Preferred Stock
Common Stock [Member]
Common Stock [Member]
At The Market program
Common Stock [Member]
Registered direct offering
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
At The Market program
Additional Paid-in Capital [Member]
Registered direct offering
Treasury Stock, Common [Member]
Treasury Stock, Common [Member]
At The Market program
Treasury Stock, Common [Member]
Registered direct offering
Accumulated Deficit [Member]
Accumulated Deficit [Member]
At The Market program
Accumulated Deficit [Member]
Registered direct offering
Balance (in shares) at Dec. 31, 2024       582     8,611,266                      
Balance at Dec. 31, 2024 $ 71,477     $ 0     $ 1,550     $ 283,194     $ (1,475)     $ (211,792)    
Stock-based compensation 563     0     0     563     0     0    
Net loss (6,718)     $ 0     $ 0     0     0     (6,718)    
Balance (in shares) at Mar. 31, 2025       582     8,611,266                      
Balance at Mar. 31, 2025 65,322     $ 0     $ 1,550     283,757     (1,475)     (218,510)    
Balance (in shares) at Dec. 31, 2024       582     8,611,266                      
Balance at Dec. 31, 2024 71,477     $ 0     $ 1,550     283,194     (1,475)     (211,792)    
Net loss (15,141)                                  
Balance (in shares) at Jun. 30, 2025       577     8,611,361                      
Balance at Jun. 30, 2025 57,695     $ 0     $ 1,550     284,553     (1,475)     (226,933)    
Balance (in shares) at Mar. 31, 2025       582     8,611,266                      
Balance at Mar. 31, 2025 65,322     $ 0     $ 1,550     283,757     (1,475)     (218,510)    
Issuance of common stock upon Series B preferred stock conversion (in shares)       (5)     95                      
Issuance of common stock upon Series B preferred stock conversion 0     $ 0     $ 0     0     0     0    
Stock-based compensation 796           0     796     0     0    
Net loss (8,423)     $ 0     $ 0     0     0     (8,423)    
Balance (in shares) at Jun. 30, 2025       577     8,611,361                      
Balance at Jun. 30, 2025 57,695     $ 0     $ 1,550     284,553     (1,475)     (226,933)    
Balance (in shares) at Dec. 31, 2025       577     8,611,361                      
Balance at Dec. 31, 2025 39,353     $ 0     $ 1,550     285,840     (1,475)     (246,562)    
Stock-based compensation 722     0     0     722     0     0    
Net loss (9,589)     $ 0     $ 0     0     0     (9,589)    
Balance (in shares) at Mar. 31, 2026       577     8,611,361                      
Balance at Mar. 31, 2026 30,486     $ 0     $ 1,550     286,562     (1,475)     (256,151)    
Balance (in shares) at Dec. 31, 2025       577     8,611,361                      
Balance at Dec. 31, 2025 39,353     $ 0     $ 1,550     285,840     (1,475)     (246,562)    
Net loss (18,080)                                  
Balance (in shares) at Jun. 30, 2026       577     9,979,298                      
Balance at Jun. 30, 2026 26,830     $ 0     $ 1,796     291,151     (1,475)     (264,642)    
Balance (in shares) at Mar. 31, 2026       577     8,611,361                      
Balance at Mar. 31, 2026 30,486     $ 0     $ 1,550     286,562     (1,475)     (256,151)    
Issuance of common stock under, net of issuance costs   $ 21 $ 4,500   $ 0 $ 0   $ 1 $ 245   $ 20 $ 4,255   $ 0 $ 0   $ 0 $ 0
Issuance of common stock under, net of issuance costs               4,300 1,363,637                  
Stock-based compensation 815     0     0     815     0     0    
Issuance costs relating to registered direct offering (501)     0     0     (501)     0     0    
Net loss (8,491)     $ 0     $ 0     0     0     (8,491)    
Balance (in shares) at Jun. 30, 2026       577     9,979,298                      
Balance at Jun. 30, 2026 $ 26,830     $ 0     $ 1,796     $ 291,151     $ (1,475)     $ (264,642)