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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, 2017		Sep. 30, 2016	Sep. 30, 2017		Sep. 30, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		$ 394			$ 394			$ 1,496
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		4,436			4,436			2,591
Impaired Financing Receivable, Unpaid Principal Balance, Total		4,830			4,830			4,087
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		139			139			857
Impaired Financing Receivable, with Related Allowance, Recorded Investment		4,436			4,436			2,591
Impaired Financing Receivable, Recorded Investment, Total		4,575			4,575			3,448
Impaired Financing Receivable, Allocated Loans and Leases		31			31			22
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		140		$ 976	144		$ 979
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		4,450		3,010	4,598		3,056
Impaired Financing Receivable, Average Recorded Investment, Total		4,590		3,986	4,742		4,035
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized		6		17	20		44
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		52		43	148		130
Impaired Financing Receivable, Interest Income Recognized, Total		58		60	168		174
Impaired Financing Receivable Allocated Loans and Leases		31			31			22
Impaired financing receivable, rounding threshold					1			1
Single-Family Residential [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	[1]	117			117			122
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	117			117			122
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment				161			161
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	118		124	119		126
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	[1]	2		2	5		6
Multi-Family Residential [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance								37
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	[1]	31			31
Impaired Financing Receivable, with No Related Allowance, Recorded Investment								37
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	31			31
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		32	[1]	40	34	[1]	42
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		1	[1]	1	2	[1]	2
Non-Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance								112
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		2,982			2,982			2,068
Impaired Financing Receivable, with No Related Allowance, Recorded Investment								112
Impaired Financing Receivable, with Related Allowance, Recorded Investment		2,982			2,982			2,068
Impaired Financing Receivable, Allocated Loans and Leases		23			23			19
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		2,989		2,196	3,001		2,206
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		42		33	120		101
Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		394			394			871
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		970			970			202
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		139			139			350
Impaired Financing Receivable, with Related Allowance, Recorded Investment		970			970			202
Impaired Financing Receivable, Allocated Loans and Leases		8			8			2
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		140		358	144		363
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		972		206	1,098		209
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized		6		13	20		35
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		5		2	14		7
Land [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance
Impaired Financing Receivable, with No Related Allowance, Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment				222			232
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized				4			11
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance								476
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		336	[1]		336	[1]		199
Impaired Financing Receivable, with No Related Allowance, Recorded Investment								358
Impaired Financing Receivable, with Related Allowance, Recorded Investment		336	[1]		336	[1]		199
Impaired Financing Receivable, Allocated Loans and Leases								$ 1
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment				457			455
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		339	[1]	222	346	[1]	241
Impaired Financing Receivable, with no Related Allowance, Interest Income Recognized				4			9
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		$ 2	[1]	$ 1	$ 7	[1]	$ 3
[1] Allowance recorded is less than $1 resulting in rounding to zero.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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