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Loans (Summary Of Impaired Loans) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	[1]	$ 2,332	$ 2,219
Recorded Investment, With an allowance recorded	[1]	746	6,381
Recorded Investment	[1]	3,078	8,600
Unpaid Principal Balance, With no related allowance recorded	[1]	3,276	2,954
Unpaid Principal Balance, With an allowance recorded	[1]	746	6,381
Unpaid Principal Balance	[1]	4,022	9,335
Related Allowance		206	2,171
Average Recorded Investment, With no related allowance recorded		1,848	1,474
Average Recorded Investment, With an allowance recorded		4,394	5,984
Average Recorded Investment		6,242	7,458
Commercial Business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	[1]	319	1,635
Recorded Investment, With an allowance recorded	[1]	725	3,853
Unpaid Principal Balance, With no related allowance recorded	[1]	487	2,370
Unpaid Principal Balance, With an allowance recorded	[1]	725	3,853
Related Allowance		205	2,056
Average Recorded Investment, With no related allowance recorded		1,156	853
Average Recorded Investment, With an allowance recorded		2,458	4,468
Commercial Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	[1]	2,013	584
Recorded Investment, With an allowance recorded	[1]	21	2,528
Unpaid Principal Balance, With no related allowance recorded	[1]	2,789	584
Unpaid Principal Balance, With an allowance recorded	[1]	21	2,528
Related Allowance		1	115
Average Recorded Investment, With no related allowance recorded		692	621
Average Recorded Investment, With an allowance recorded		$ 1,936	$ 1,516
[1] Difference between recorded investment and unpaid principal balance represents partial charge-offs.

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