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Loans And Leases (Individually Evaluated For Impairment By Class Of Loans) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended			12 Months Ended
		Sep. 30, 2019	Sep. 30, 2018		Sep. 30, 2019	Sep. 30, 2018		Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		$ 224			$ 224			$ 379
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		4,684			4,684			3,036
Impaired Financing Receivable, Unpaid Principal Balance, Total		4,908			4,908			3,415
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		120			120			125
Impaired Financing Receivable, with Related Allowance, Recorded Investment		4,684			4,684			3,036
Impaired Financing Receivable, Recorded Investment, Total		4,804			4,804			3,161
Impaired Financing Receivable, ALL Allocated		35			35			22
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		121	$ 129		122	$ 132
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		4,672	3,296		4,316	3,342
Impaired Financing Receivable, Average Recorded Investment, Total		4,793	3,425		4,438	3,474
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized		4	5		10	16
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		39	46		120	139
Impaired Financing Receivable, Interest Income Recognized, Total		43	51		130	155
Impaired Financing Receivable Allocated Loans and Leases		35			35			22
Impaired financing receivable, rounding threshold								1
Single-Family Residential[Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	[1]	108			108			110
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	108			108			110
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	108	112		109	114
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	[1]	1	2		4	5
Real Estate, Commercial, Non-Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		4,487			4,487			2,826
Impaired Financing Receivable, with Related Allowance, Recorded Investment		4,487			4,487			2,826
Impaired Financing Receivable, ALL Allocated		34			34			22
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		4,474	2,832		4,113	2,841
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		38	39		116	117
Real Estate, Commercial, Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		224			224			379
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		120			120			125
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		121	129		122	132
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment			150			175
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized		4	5		10	16
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized			2			6
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		89			89			100	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		89			89			$ 100	[1]
Impaired Financing Receivable, ALL Allocated		1			1
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		$ 90	202	[1]	$ 94	212	[1]
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	[1]		$ 3			$ 11
[1] Allowance recorded is less than $1 resulting in rounding to zero.

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