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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common stock [Member]
Common Class A [Member]
Common stock [Member]
Common Class B [Member]
Additional paid-in capital [Member]
Accumulated Other Comprehensive Loss [Member]
Accumulated deficit [Member]
Beginning Balance , Shares at Dec. 31, 2021   42,862,175 5,435,254      
Beginning Balance at Dec. 31, 2021 $ 285,037 $ 4 $ 1 $ 363,483 $ (228) $ (78,223)
Issuance of common stock upon exercise of stock options , Shares   16,572        
Issuance of common stock upon exercise of stock options 13     13    
Unrealized losses on marketable securities (791)       (791)  
Stock-based compensation expense 2,205     2,205    
Net loss (17,549)         (17,549)
Ending Balance , Shares at Mar. 31, 2022   42,878,747 5,435,254      
Ending Balance at Mar. 31, 2022 268,915 $ 4 $ 1 365,701 (1,019) (95,772)
Beginning Balance , Shares at Dec. 31, 2021   42,862,175 5,435,254      
Beginning Balance at Dec. 31, 2021 285,037 $ 4 $ 1 363,483 (228) (78,223)
Net loss (81,900)          
Ending Balance , Shares at Dec. 31, 2022   51,233,701 5,435,254      
Ending Balance at Dec. 31, 2022 462,978 $ 5 $ 1 623,543 (494) (160,077)
Issuance of common stock upon exercise of stock options , Shares   82,989        
Issuance of common stock upon exercise of stock options 619     619    
Unrealized losses on marketable securities 192       192  
Stock-based compensation expense 5,371     5,371    
Net loss (25,192)         (25,192)
Ending Balance , Shares at Mar. 31, 2023   51,316,690 5,435,254      
Ending Balance at Mar. 31, 2023 $ 443,968 $ 5 $ 1 $ 629,533 $ (302) $ (185,269)