Commitments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Nov. 30, 2019
Operating leases
Operating lease liability	$ 400		$ 1,700
Right-of-use asset	394	$ 966	$ 1,700
Estimated incremental borrowing rate			7.49%
Future minimum payments	400
Rent expense	700	800
Lease payments	$ 700	$ 1,500