Leases - Supplemental disclosure of cash flow information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Leases
Cash paid for amounts included in the measurement of operating lease liabilities	$ 2,118	$ 1,800
Operating lease liabilities arising from obtaining right-of-use assets	$ 3,017
Weighted-average remaining lease term - operating leases (in years)	3 years 11 months 15 days	2 years 9 months
Weighted-average discount rate - operating leases	8.40%	9.50%