Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Stockholder's Equity (Unaudited)

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Consolidated Statements of Stockholder's Equity (Unaudited) - USD ($)
$ in Thousands
Total
February 2024 Registered Direct Offering [Member]
November 2022 Private Placement [Member]
May 2023 Registered Direct Offering [Member]
Common Stock [Member]
Common Stock [Member]
February 2024 Registered Direct Offering [Member]
Common Stock [Member]
May 2023 Registered Direct Offering [Member]
Additional paid-in capital [Member]
Additional paid-in capital [Member]
February 2024 Registered Direct Offering [Member]
Additional paid-in capital [Member]
November 2022 Private Placement [Member]
Additional paid-in capital [Member]
May 2023 Registered Direct Offering [Member]
Accumulated other comprehensive income (loss) [Member]
Accumulated deficit [Member]
Beginning Balance at Dec. 31, 2022 $ 8,303       $ 87     $ 144,148       $ 4 $ (135,936)
Beginning Balance, Shares at Dec. 31, 2022         17,897,029                
Stock-based compensation expense 1,085             1,085          
Shares issued on exercise of warrants 77             77          
Shares issued on exercise of warrants, Shares         33,333                
Financing costs     $ (30)             $ (30)      
Net loss (8,992)                       (8,992)
Ending Balance at Mar. 31, 2023 443       $ 87     145,280       4 (144,928)
Ending Balance, Shares at Mar. 31, 2023         17,930,362                
Beginning Balance at Dec. 31, 2022 $ 8,303       $ 87     144,148       4 (135,936)
Beginning Balance, Shares at Dec. 31, 2022         17,897,029                
Restricted stock unit settlements, Shares 139,750                        
Net loss $ (17,231)                        
Ending Balance at Jun. 30, 2023 9,699       $ 90     162,772       4 (153,167)
Ending Balance, Shares at Jun. 30, 2023         21,105,760                
Beginning Balance at Mar. 31, 2023 443       $ 87     145,280       4 (144,928)
Beginning Balance, Shares at Mar. 31, 2023         17,930,362                
Stock-based compensation expense 1,190             1,190          
Shares issued on exercise of warrants 150             150          
Shares issued on exercise of warrants, Shares         65,000                
Shares issued       $ 15,301     $ 3       $ 15,298    
Shares issued, Shares             3,000,000            
SVB convertible debt refinancing discount $ 1,074             1,074          
Restricted stock unit settlements, Shares 139,750       139,750                
Restricted stock unit settlements withheld and retired to treasury $ (220)             (220)          
Restricted stock unit settlements withheld and retired to treasury, Shares         (29,352)                
Net loss (8,239)                       (8,239)
Ending Balance at Jun. 30, 2023 9,699       $ 90     162,772       4 (153,167)
Ending Balance, Shares at Jun. 30, 2023         21,105,760                
Beginning Balance at Dec. 31, 2023 (1,448)       $ 90     164,209       4 (165,751)
Beginning Balance, Shares at Dec. 31, 2023         21,165,760                
Stock-based compensation expense 1,288             1,288          
Shares issued   $ 56,110       $ 13     $ 56,097        
Shares issued, Shares           13,086,151              
Net loss (6,494)                       (6,494)
Ending Balance at Mar. 31, 2024 49,456       $ 103     221,594       4 (172,245)
Ending Balance, Shares at Mar. 31, 2024         34,251,911                
Beginning Balance at Dec. 31, 2023 $ (1,448)       $ 90     164,209       4 (165,751)
Beginning Balance, Shares at Dec. 31, 2023         21,165,760                
Restricted stock unit settlements, Shares 113,125                        
Other comprehensive income $ (11)                        
Net loss (14,955)                        
Ending Balance at Jun. 30, 2024 42,285       $ 103     222,895       (7) (180,706)
Ending Balance, Shares at Jun. 30, 2024         34,341,303                
Beginning Balance at Mar. 31, 2024 49,456       $ 103     221,594       4 (172,245)
Beginning Balance, Shares at Mar. 31, 2024         34,251,911                
Stock-based compensation expense $ 1,454             1,454          
Financing costs   $ (39)             $ (39)        
Restricted stock unit settlements, Shares 113,125       113,125                
Restricted stock unit settlements withheld and retired to treasury $ (114)             (114)          
Restricted stock unit settlements withheld and retired to treasury, Shares         (23,733)                
Other comprehensive income (11)                     (11)  
Net loss (8,461)                       (8,461)
Ending Balance at Jun. 30, 2024 $ 42,285       $ 103     $ 222,895       $ (7) $ (180,706)
Ending Balance, Shares at Jun. 30, 2024         34,341,303