Income Taxes (Schedule Of Significant Changes To Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Taxes [Abstract]
Balance at January 1,	$ 1,313	$ 1,379	$ 1,304
Decrease due to expiration of statute of limitations	(355)	(422)	(258)
Unrecognized tax benefits due to positions taken in current year	263	356	333
Balance at December 31,	$ 1,221	$ 1,313	$ 1,379