Leases - Lease costs and other lease information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Lease costs
Operating lease cost	$ 503	$ 425	$ 1,438	$ 1,250
Variable lease cost	219	187	918	550
Short-term lease cost	46	188	128	276
Finance lease cost
Interest on lease liabilities		2		7
Amortization of right-of-use assets		29		87
Sublease Income	(50)	(63)	(169)	(179)
Net lease cost	718	768	2,315	1,991
Cash paid for amounts included in the measurement of lease liabilities operating cash flows from operating leases	499	400	1,275	1,184
Right-of-use assets obtained in exchange for new operating lease liabilities	$ (1,240)	$ 1,065	$ 1,938	$ 1,452