Leases - Lease right-of-use assets and liabilities (Details) $ in Thousands	Jun. 30, 2023 USD ($) item	Dec. 31, 2022 USD ($)
Leases
Number of finance leases | item	0
Lease Right-of-Use Assets
Operating lease right-of-use assets	$ 6,440	$ 5,419
Operating lease liabilities	$ 6,746	$ 5,902