Income Taxes (Schedule Of Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Abstract]
Current, Federal	$ 11,453	$ 10,996	$ 24,200
Current, State	537	1,575	1,772
Current provision for income taxes	11,990	12,571	25,972
Deferred, Federal	(179)	(280)	(4,008)
Deferred, State	(45)	159	7
Deferred provision for income taxes	(224)	(121)	(4,001)
Total tax provision	$ 11,766	$ 12,450	$ 21,971