Summary of Significant Accounting Policies (Schedule of Other, Net) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accounting Policies [Abstract]
Interest and dividend income	$ 450	$ 534
Net (losses) gains recognized on investment securities	(3,039)	2,415
Net periodic benefit cost other than the service costs	(236)	(244)
Other income	1,680	1
Other, net	$ (1,145)	$ 2,706