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Income Taxes (Schedule Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Abstract]
Balance, beginning of year	$ 545	$ 476	$ 1,135
Additions for current year tax positions	77	69	91
Additions for prior year tax positions	11
Reductions for prior year tax positions	(72)		(13)
Payments in settlement			(737)
Balance, end of year	$ 561	$ 545	$ 476

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Amount of unrecognized tax benefits.

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