Debt - Interest Expense (Details) - Term loan - K2 HealthVentures LLC - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Components of interest expense
Interest paid or accrued	$ 887	$ 862	$ 1,774	$ 1,678
Non-cash amortization of debt discount (including warrants)		53	38	103
Non-cash accrued back-end fee	107	119	230	234
Interest expense	$ 994	$ 1,034	$ 2,042	$ 2,015