Property and Equipment, net (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Depreciation expense	$ 0.1	$ 0.1
Building
Property Plant And Equipment [Line Items]
Estimated service life	25 years
Furniture, fixtures and office equipment [Member]
Property Plant And Equipment [Line Items]
Estimated service life	5 years
Software and technology assets [Member]
Property Plant And Equipment [Line Items]
Estimated service life	3 years