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Condensed Statements of Convertible Preferred Stock and Stockholders’ Equity (Deficit) (unaudited) (Parenthetical) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Issuance of common stock upon exercise of stock options (in shares) 4,094  
Issuance of common stock upon exercise of stock options $ 4 $ 98
Stock-based compensation expense 1,304 1,222
Other comprehensive gain $ 524 $ (473)
Common Stock (Class A and B)    
Issuance of common stock upon exercise of stock options (in shares) 4,094 123,467
Additional Paid-In Capital    
Issuance of common stock upon exercise of stock options $ 4 $ 98
Stock-based compensation expense 1,304 1,222
Accumulated Other Comprehensive Loss    
Other comprehensive gain $ 524 $ (473)