Leases (Components Of Lease Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease expense	$ 1,349	$ 1,519	$ 2,723	$ 2,982
Finance lease expense:
Amortization of right-of-use assets	42	31	84	67
Interest on lease liabilities	4	2	9	4
Total finance lease expense	46	33	93	71
Variable lease expense	$ 373	$ 211	$ 797	$ 388