Leases - Supplemental cash flow information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Leases
Operating cash flows from operating leases	$ (1,345)	$ (1,271)
Operating cash flows from finance leases	(57)	(3)
Financing cash flows from finance leases	(253)	(47)
Right-of-use assets obtained in exchange for operating leases	$ 283	$ 598