v3.25.4
Consolidated statements of stockholders' equity - USD ($)
Total
Class A Common stock
Class B Common stock
Common stock
Class A Common stock
Common stock
Class B Common stock
Additional paid-in capital
Accumulated deficit
Accumulated other comprehensive income (loss)
Balance at beginning of period (in shares) at Dec. 31, 2023       37,099,909 5,309,529      
Balance at beginning of period at Dec. 31, 2023 $ 117,989,000     $ 371,000 $ 53,000 $ 546,051,000 $ (428,385,000) $ (101,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of Class A common stock upon exercise of common stock options (in shares)       9,570        
Issuance of Class A common stock upon exercise of common stock options 7,000         7,000    
Issuance of Class A common stock under ESPP (in shares)       287,217        
Issuance of Class A common stock under ESPP 231,000     $ 3,000   228,000    
Vesting of restricted stock units (in shares)       332,546        
Vesting of restricted stock units 0     $ 3,000   (3,000)    
Stock-based compensation expense 3,874,000         3,874,000    
Net loss (46,889,000)           (46,889,000)  
Other comprehensive income (loss) 140,000             140,000
Balance at end of period (in shares) at Dec. 31, 2024   37,729,242 5,309,529 37,729,242 5,309,529      
Balance at end of period at Dec. 31, 2024 75,352,000     $ 377,000 $ 53,000 550,157,000 (475,274,000) 39,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Conversion of Class B common stock to Class A common stock (in shares)       810,000 (810,000)      
Conversion of Class B common stock to Class A common stock $ 0     $ 8,000 $ (8,000)      
Issuance of Class A common stock upon exercise of common stock options (in shares) 456,842     456,842        
Issuance of Class A common stock upon exercise of common stock options $ 491,000     $ 5,000   486,000    
Issuance of Class A common stock under ESPP (in shares)       164,108        
Issuance of Class A common stock under ESPP 162,000     $ 2,000   160,000    
Vesting of restricted stock units (in shares)       856,445        
Vesting of restricted stock units 0     $ 9,000   (9,000)    
Tax withholding on settlement of restricted stock units (in shares)       (158,908)        
Tax withholding on settlement of restricted stock units (419,000)     $ (2,000)   (417,000)    
Issuance of Class A common stock under the ATM offering, net (in shares)       113,217        
Issuance of Class A common stock under the ATM offering, net 421,000     $ 1,000   420,000    
Warrant to purchase Class A common stock 317,000         317,000    
Stock-based compensation expense 4,033,000         4,033,000    
Net loss (47,123,000)           (47,123,000)  
Other comprehensive income (loss) (28,000)             (28,000)
Balance at end of period (in shares) at Dec. 31, 2025   39,970,946 4,499,529 39,970,946 4,499,529      
Balance at end of period at Dec. 31, 2025 $ 33,206,000     $ 400,000 $ 45,000 $ 555,147,000 $ (522,397,000) $ 11,000