Quarterly report pursuant to Section 13 or 15(d)

Leases (Additional Information) (Details)

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Leases (Additional Information) (Details) - USD ($)
$ in Thousands
 6 Months Ended
Feb. 24, 2024
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Oct. 01, 2023
Lessee, Lease, Description [Line Items]          
Weighted average remaining lease term   9 months 18 days   1 year 6 months  
Operating lease liability         $ 953
Additional in fixed undiscounted lease payments   $ 310      
Weighted average discount rate   10.40%   9.50%  
Operating lease payments   $ 2,220 $ 1,139    
Wuxi Agreement Member          
Lessee, Lease, Description [Line Items]          
Work orders terms The terms of the August 2023 work orders included both fixed costs and contingent variable costs. The lease commenced October 1, 2023, and a right of use asset and lease liability of $953 was initially recorded for the fixed payments. In the first quarter of 2024, the contingency related to the variable costs was resolved and the lease was remeasured, resulting in an increase in the right of use asset and lease liability of $4,032. The Company may terminate the Dedicated Suite lease for convenience with six months’ prior written notice and a $1,080 termination fee if both the CABA-201 and MuSK-CAART work orders are terminated. In August 2024, the 2023 work order related to GMP manufacturing was amended to reduce the minimum monthly runs through the end of 2024, resulting in a reduction to future lease payments of approximately $1,500.        
Termination fees $ 1,080        
Additional in fixed undiscounted lease payments $ 4,032        
Reduction to Future Lease Payments   $ 1,500