Income Taxes (Reconciliatoin Of The Unrecognized Tax Benefits Rollforward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of the beginning and ending balance of unrecognized tax benefits
Beginning balance	$ 1,807	$ 1,811
Additions for current year tax positions	413	115
Additions for prior year tax positions	434	377
Decreases related to lapse of applicable statute of limitation	(565)	(496)
Ending balance	$ 2,089	$ 1,807