Investment Securities (Schedule Of Realized Gain (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investment Securities [Abstract]
Gross realized gain	$ 104	$ 114
Gross realized loss	(90)	(60)	$ (147)
Net gain (loss)	$ 14	$ 54	$ (147)

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration