Leases - Balance Sheet Composition (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
ROU assets – operating leases	$ 1,671	$ 2,432
Liabilities
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accounts payable and accrued liabilities	Accounts payable and accrued liabilities
Current operating lease obligations	$ 914	$ 936
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other non-current liabilities	Other non-current liabilities
Non-current operating lease obligations	$ 975	$ 1,752
Total operating lease obligations	$ 1,889	$ 2,688