Notes Payable - Composition of debt (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Aug. 31, 2023
Notes Payable
Gross proceeds	$ 75,000		$ 58,100
Contractual exit fee	2,003
Principal payment including associated exit fee	(17,326)
Unamortized debt discount and issuance costs	(3,052)
Total note payable	56,625
Current portion of note payable	11,550	$ 11,551
Non-current portion of note payable	$ 45,075	$ 61,423