Income Taxes (Schedule Of Accrued Liability For Unrecognized Tax Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits at beginning of year	$ 1,276	$ 1,331
Gross increases – tax positions in prior period	21	15
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	0	(8)
Gross increases – current-period tax positions	235	222
Lapse of statute of limitations	(327)	(284)
Unrecognized tax benefits at end of year	$ 1,205	$ 1,276