Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholder's Equity

v3.24.1
Consolidated Statements of Stockholder's Equity - USD ($)
$ in Thousands
Total
May 2021 Public Offering [Member]
November 2022 Private Placement [Member]
May 2023 Private Placement [Member]
Common stock [Member]
Common stock [Member]
May 2021 Public Offering [Member]
Common stock [Member]
November 2022 Private Placement [Member]
Common stock [Member]
May 2023 Private Placement [Member]
Additional paid-in capital [Member]
Additional paid-in capital [Member]
May 2021 Public Offering [Member]
Additional paid-in capital [Member]
November 2022 Private Placement [Member]
Additional paid-in capital [Member]
May 2023 Private Placement [Member]
Accumulated other comprehensive income (loss) [Member]
Accumulated deficit [Member]
Beginning Balance at Dec. 31, 2020 $ 37,286       $ 76       $ 97,640       $ 4 $ (60,434)
Beginning Balance, Shares at Dec. 31, 2020         6,111,735                  
Stock-based compensation expense 2,187               2,187          
Shares issued on exercise of warrants 338               338          
Shares issued on exercise of warrants, Shares         50,834                  
Shares issued 41 $ 21,343       $ 3     41 $ 21,340        
Shares issued, Shares         5,114 3,285,714                
Restricted stock unit settlements (1)               (1)          
Restricted Stock Unit Settlements, Shares         145                  
Net loss (33,152)                         (33,152)
Ending Balance at Dec. 31, 2021 28,042       $ 79       121,545       4 (93,586)
Ending Balance, Shares at Dec. 31, 2021         9,453,542                  
Stock-based compensation expense 3,270               3,270          
Shares issued on exercise of warrants 24               24          
Shares issued on exercise of warrants, Shares         3,709                  
Shares issued from purchase agreement with Virtu 1,330               1,330          
Shares issued from purchase agreement with Virtu, Shares         200,000                  
Shares issued $ 26   $ 17,882       $ 8   26   $ 17,874      
Shares issued, Shares         3,584   8,186,282              
Restricted Stock Unit Settlements, Shares 26,625       26,625                  
Restricted stock unit settlements withheld and retired to treasury $ (47)               (47)          
Restricted stock unit settlements withheld and retired to treasury, Shares         (5,605)                  
Shares issued under employee share purchase plan 126               126          
Shares issued under employee share purchase plan, Shares         28,892                  
Net loss (42,350)                         (42,350)
Ending Balance at Dec. 31, 2022 8,303       $ 87       144,148       4 (135,936)
Ending Balance, Shares at Dec. 31, 2022         17,897,029                  
Stock-based compensation expense 3,439               3,439          
Costs relating to financing and purchase agreement     $ (30)               $ (30)      
Shares issued on exercise of warrants 227               227          
Shares issued on exercise of warrants, Shares         98,333                  
Shares issued 273     $ 15,301       $ 3 273     $ 15,298    
Shares issued, Shares         60,000     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 (29,815)                         (29,815)
Ending Balance at Dec. 31, 2023 $ (1,448)       $ 90       $ 164,209       $ 4 $ (165,751)
Ending Balance, Shares at Dec. 31, 2023         21,165,760