Supplemental cash flow information - (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Leases [Abstract]
Operating cash flows from operating leases(1)	$ 260	[1]
ROU asset obtained in exchange for an operating lease liability	$ 4,931

[1] Operating cash flows from operating leases includes cash inflow of $0.3 million reimbursed by the lessor for improvements made to the newly leased office space pursuant to the terms of the Suite 1350 lease.