Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Activity Under the Plans (Details)

v3.24.2.u1
Stock-Based Compensation - Schedule of Activity Under the Plans (Details)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
¥ / shares
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Shares Underlying Options      
Beginning balance (in shares) | shares 2,578 2,578  
Granted (in shares) | shares 1,667 1,667  
Forfeited (in shares) | shares 0 0  
Ending balance (in shares) | shares 4,245 4,245 2,578
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value | ¥ / shares   ¥ 0  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Intrinsic Value | ¥ / shares   ¥ 0  
Exercisable (in shares) | shares 1,770 1,770  
Weighted Average Exercise Price      
Beginning balance (in dollars per share) | $ / shares $ 9,868    
Granted (in dollars per share) | $ / shares 14    
Forfeited (in dollars per share) | $ / shares 0    
Ending balance (in dollars per share) | $ / shares 5,998   $ 9,868
Exercisable (in dollars per share) | $ / shares $ 14,245 ¥ 14,245  
Weighted Average Remaining Contractual Term (Years)      
Weighted average remaining contractual term (years), outstanding 8 years 4 months 24 days 8 years 4 months 24 days 8 years 1 month 6 days
Weighted average remaining contractual term (years), granted 9 years 10 months 24 days 9 years 10 months 24 days  
Weighted average remaining contractual term (years), exercisable 6 years 9 months 18 days 6 years 9 months 18 days  
Aggregate Intrinsic Value      
Aggregate intrinsic value, outstanding | $ $ 0 ¥ 0 $ 0
Aggregate intrinsic value, exercisable | $ $ 0 ¥ 0