Benefit Plans (Schedule Of Net Benefit Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Benefit Plans [Abstract]
Service cost	$ 419	$ 332
Interest cost	374	525
Expected return on plan assets	(1,115)	(1,079)
Recognized net actuarial loss	1,135	904
Net periodic pension cost	813	682
Settlement expense	425
Total pension expense	$ 1,238	$ 682