Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Changes in Stockholders??? Equity (Deficit)

v3.24.1
Consolidated Statements of Changes in Stockholders’ Equity (Deficit) - USD ($)
$ in Thousands
Total
ATM Agreement
Underwritten Public Offering
Common stock
Common stock
ATM Agreement
Common stock
Underwritten Public Offering
Additional paid-in capital
 [1]
Additional paid-in capital
ATM Agreement
 [1]
Additional paid-in capital
Underwritten Public Offering
 [1]
Accumulated deficit
Balance at the beginning (in shares) at Dec. 31, 2021 [1]       39,164            
Balance at the beginning at Dec. 31, 2021 $ 23,082     $ 0 [1]     $ 285,248     $ (262,166)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Issuance of stock (in shares) [1]         23          
Issuance of common stock   $ 34           $ 34    
Restricted stock units vested during the period (in shares) [1]       4            
Shares purchased through employee stock purchase plan (in shares) [1]       68            
Shares purchased through employee stock purchase plan 73           73      
Impact of reverse stock split fractional share round-up (in shares) [1]       35            
Stock-based compensation 7,554           7,554      
Net loss $ (41,658)                 (41,658)
Balance at the end (in shares) at Dec. 31, 2022 39,294 [2]     39,294 [1]            
Balance at the end at Dec. 31, 2022 $ (10,915)     $ 0 [1]     292,909     (303,824)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Issuance of stock (in shares) [1]         746,076 15,709        
Issuance of common stock   $ 32,470 $ 13,749 $ 1 [1]       $ 32,469 $ 13,749  
Retirement of common shares in exchange for pre-funded warrants (in shares) [1]       (5,417)            
Retirement of common shares in exchange for pre-funded warrants (3,640)           (3,874)     234
Issuance of pre-funded warrants in exchange or retirement of common shares 3,640           3,640      
Exercise of pre-funded warrants for common shares (in shares) [1]       5,850            
Shares purchased through employee stock purchase plan (in shares) [1]       99            
Shares purchased through employee stock purchase plan 67           67      
Impact of reverse stock split fractional share round-up (in shares) [1]       135            
Stock-based compensation 3,477           3,477      
Net loss $ (31,544)                 (31,544)
Balance at the end (in shares) at Dec. 31, 2023 801,746 [2]     801,746 [1]            
Balance at the end at Dec. 31, 2023 $ 7,304     $ 1 [1]     $ 342,437     $ (335,134)
[1] Amounts for prior periods presented have been retroactively adjusted to reflect the 1-for-240 reverse stock split effected on December 28, 2023. See Note 1 for details.
[2] Amounts for prior periods presented have been retroactively adjusted to reflect the 1-for-240 reverse stock split effected on December 28, 2023. See Note 1 for details.