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Condensed Statements of Convertible Preferred Stock and Stockholders’ Equity (Deficit) (unaudited) - USD ($)
$ in Thousands
Total
Common Stock (Class A and B)
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Balance at the beginning (in shares) at Dec. 31, 2021   30,774,126      
Balance at the beginning at Dec. 31, 2021 $ 138,564 $ 3 $ 305,212 $ (183) $ (166,468)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon exercise of stock options (in shares)   123,467      
Issuance of common stock upon exercise of stock options 98   98    
Stock-based compensation expense 1,222   1,222    
Other comprehensive gain (473)     (473)  
Net loss (12,208)       (12,208)
Balance at the ending (in shares) at Mar. 31, 2022   30,897,593      
Balance at the ending at Mar. 31, 2022 127,203 $ 3 306,532 (656) (178,676)
Balance at the beginning (in shares) at Dec. 31, 2022   31,017,946      
Balance at the beginning at Dec. 31, 2022 $ 98,943 $ 3 310,575 (981) (210,654)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon exercise of stock options (in shares) 4,094 4,094      
Issuance of common stock upon exercise of stock options $ 4   4    
Stock-based compensation expense 1,304   1,304    
Other comprehensive gain 524     524  
Net loss (10,565)       (10,565)
Balance at the ending (in shares) at Mar. 31, 2023   31,022,040      
Balance at the ending at Mar. 31, 2023 $ 90,210 $ 3 $ 311,883 $ (457) $ (221,219)