Loans And Leases (Allowance For Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses: Beginning balance				$ 9,527				$ 9,173				$ 8,928	$ 9,527	$ 9,173	$ 8,928
Charge-offs													(1,380)	(909)	(1,002)
Recoveries													192	188	187
Provisions	$ 375	$ 225	$ 275	150	$ 575	$ 200	$ 150	150	$ 250	$ 210	$ 300	300	1,025	1,075	1,060
Allowance for Loan Losses: Ending balance	9,364				9,527				9,173				9,364	9,527	9,173
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	3,061				2,009								3,061	2,009
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	6,303				7,518								6,303	7,518
Loan Receivables: Ending balance	597,494				556,209								597,494	556,209
Loans Receivable: Ending balance: individually evaluated for impairment	11,352				12,613								11,352	12,613
Loans Receivable: Ending balance: collectively evaluated for impairment	586,142				543,596								586,142	543,596
Unearned lease revenue	482				335								482	335
Deferred loan costs	1,800				1,500								1,800	1,500
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses: Beginning balance				1,336				1,052				944	1,336	1,052	944
Charge-offs													(224)	(25)	(309)
Recoveries													55	47	32
Provisions													(92)	262	385
Allowance for Loan Losses: Ending balance	1,075				1,336				1,052				1,075	1,336	1,052
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	193				331								193	331
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	882				1,005								882	1,005
Loan Receivables: Ending balance	98,477				102,653								98,477	102,653
Loans Receivable: Ending balance: individually evaluated for impairment	235				555								235	555
Loans Receivable: Ending balance: collectively evaluated for impairment	98,242				102,098								98,242	102,098
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses: Beginning balance				5,014				4,672				4,253	5,014	4,672	4,253
Charge-offs													(592)	(432)	(239)
Recoveries													37	18	91
Provisions													247	756	567
Allowance for Loan Losses: Ending balance	4,706				5,014				4,672				4,706	5,014	4,672
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	2,382				1,574								2,382	1,574
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	2,324				3,440								2,324	3,440
Loan Receivables: Ending balance	204,311				201,878								204,311	201,878
Loans Receivable: Ending balance: individually evaluated for impairment	8,436				10,492								8,436	10,492
Loans Receivable: Ending balance: collectively evaluated for impairment	195,875				191,386								195,875	191,386
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses: Beginning balance				1,533				1,519				1,482	1,533	1,519	1,482
Charge-offs													(504)	(437)	(361)
Recoveries													100	95	30
Provisions													705	356	368
Allowance for Loan Losses: Ending balance	1,834				1,533				1,519				1,834	1,533	1,519
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	171				9								171	9
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	1,663				1,524								1,663	1,524
Loan Receivables: Ending balance	149,735				114,626								149,735	114,626
Loans Receivable: Ending balance: individually evaluated for impairment	799				730								799	730
Loans Receivable: Ending balance: collectively evaluated for impairment	148,936				113,896								148,936	113,896
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses: Beginning balance				1,407				1,316				1,613	1,407	1,316	1,613
Charge-offs													(60)	(15)	(93)
Recoveries														28	34
Provisions													275	78	(238)
Allowance for Loan Losses: Ending balance	1,622				1,407				1,316				1,622	1,407	1,316
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	315				95								315	95
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	1,307				1,312								1,307	1,312
Loan Receivables: Ending balance	144,971				137,052								144,971	137,052
Loans Receivable: Ending balance: individually evaluated for impairment	1,882				836								1,882	836
Loans Receivable: Ending balance: collectively evaluated for impairment	143,089				136,216								143,089	136,216
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses: Beginning balance				$ 237				$ 614				$ 636	237	614	636
Provisions													(110)	(377)	(22)
Allowance for Loan Losses: Ending balance	127				237				$ 614				127	237	$ 614
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	$ 127				$ 237								$ 127	$ 237