Leases (Summary Of Lease Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Amortization of property and equipment	$ 136	$ 127	$ 400	$ 395
Interest expense on finance leases	20	22	62	69
Total finance lease expense	156	149	462	464
Operating lease expense	1,836	1,853	5,467	5,656
Sublease income	(87)	(92)	(101)	(275)
Total lease expense	$ 1,905	$ 1,910	$ 5,828	$ 5,845