Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Geographic Information
Revenue	$ 60	$ 450
Identifiable long-lived assets	548	775
Reportable Geographical Components
Geographic Information
Revenue	60	450
Identifiable long-lived assets	548	775
Reportable Geographical Components | U.S.
Geographic Information
Revenue	60	450
Identifiable long-lived assets	484	671
Reportable Geographical Components | Canada
Geographic Information
Revenue	0	0
Identifiable long-lived assets	$ 64	$ 104