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Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
A T M Facility
Public Offerings
Common Stock
Common Stock
A T M Facility
Common Stock
Public Offerings
Additional Paid-in Capital
Additional Paid-in Capital
A T M Facility
Additional Paid-in Capital
Public Offerings
Accumulated Other Comprehensive Loss
Accumulated Deficit
Beginning balance at Dec. 31, 2020 $ 202,961     $ 20     $ 326,046     $ (10) $ (123,095)
Beginning balance, shares at Dec. 31, 2020       19,931,660              
Issuance of common stock   $ 3,289           $ 3,289      
Issuance of common stock, shares         186,546            
Issuance of common stock upon exercise of stock options 487           487        
Issuance of common stock upon exercise of stock options, shares       188,286              
Issuance of common stock upon ESPP purchase 144           144        
Issuance of common stock upon ESPP purchase, Shares       10,712              
Issuance of common stock warrant in connection with term loan facility 574           574        
Stock-based compensation 8,678           8,678        
Net loss (90,122)                   (90,122)
Other comprehensive loss (54)                 (54)  
Ending balance at Dec. 31, 2021 125,957     $ 20     339,218     (64) (213,217)
Ending balance, shares at Dec. 31, 2021       20,317,204              
Issuance of common stock   $ 28,453 $ 88,239   $ 4 $ 20   $ 28,449 $ 88,219    
Issuance of common stock, shares         3,948,611 18,675,466          
Issuance of common stock upon cashless exercise of warrants       $ 3     (3)        
Issuance of common stock upon cashless exercise of warrants, shares       3,143,682              
Issuance of common stock upon exercise of warrants 1,082     $ 4     1,078        
Issuance of common stock upon exercise of warrants       4,202,499              
Issuance of common stock upon vesting of restricted stock units, net of withholding taxes (298)           (298)        
Issuance of common stock upon vesting of restricted stock units, net of withholding taxes, shares       103,703              
Issuance of common stock upon exercise of stock options 305           305        
Issuance of common stock upon exercise of stock options, shares       151,061              
Issuance of common stock upon ESPP purchase 50           50        
Issuance of common stock upon ESPP purchase, Shares       18,364              
Stock-based compensation 10,356           10,356        
Net loss (102,026)                   (102,026)
Other comprehensive loss (286)                 (286)  
Ending balance at Dec. 31, 2022 $ 151,832     $ 51     $ 467,374     $ (350) $ (315,243)
Ending balance, shares at Dec. 31, 2022       50,560,590