Loans (Changes In The Allowance For Loan Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 27,085	$ 27,637	$ 26,736
Charge-offs	(11,076)	(12,958)	(12,014)
Recoveries	5,287	5,025	5,126
Provision	9,638	7,381	7,789
Ending balance	30,934	27,085	27,637
Allowance for loan losses, Individually Evaluated for impairment	768	1,006	2,467
Allowance for loan losses, Collectively Evaluated for impairment	30,166	26,079	25,170
Loans, Ending balance	2,305,071	2,052,600	1,881,071
Loans, Individually Evaluated for impairment	2,987	4,869	7,308
Loans, Collectively Evaluated for impairment	2,302,084	2,047,731	1,873,763
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,540	5,621	4,273
Charge-offs	(943)	(1,433)	(204)
Recoveries	447	212	201
Provision	2,181	1,140	1,351
Ending balance	7,225	5,540	5,621
Allowance for loan losses, Individually Evaluated for impairment	663	996	1,556
Allowance for loan losses, Collectively Evaluated for impairment	6,562	4,544	4,065
Loans, Ending balance	349,079	313,475	267,377
Loans, Individually Evaluated for impairment	2,052	3,922	4,288
Loans, Collectively Evaluated for impairment	347,027	309,553	263,089
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	9,027	8,122	7,743
Charge-offs	(385)	(895)	(304)
Recoveries	45	146	143
Provision	1,628	1,654	540
Ending balance	10,315	9,027	8,122
Allowance for loan losses, Individually Evaluated for impairment	105	10	911
Allowance for loan losses, Collectively Evaluated for impairment	10,210	9,017	7,211
Loans, Ending balance	671,552	567,481	476,407
Loans, Individually Evaluated for impairment	935	947	3,020
Loans, Collectively Evaluated for impairment	670,617	566,534	473,387
Residential Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	1,347	1,620	1,607
Charge-offs	(289)	(397)	(382)
Recoveries	174	114	76
Provision	246	10	319
Ending balance	1,478	1,347	1,620
Allowance for loan losses, Collectively Evaluated for impairment	1,478	1,347	1,620
Loans, Ending balance	421,476	376,023	352,782
Loans, Collectively Evaluated for impairment	421,476	376,023	352,782
Residential Real Estate Lines [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	345	435	436
Charge-offs	(104)	(199)	(148)
Recoveries	15	31	19
Provision	47	78	128
Ending balance	303	345	435
Allowance for loan losses, Collectively Evaluated for impairment	303	345	435
Loans, Ending balance	119,745	124,766	127,233
Loans, Collectively Evaluated for impairment	119,745	124,766	127,233
Consumer Indirect [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	10,458	11,383	12,230
Charge-offs	(8,748)	(9,156)	(10,004)
Recoveries	4,259	4,200	4,321
Provision	5,342	4,031	4,836
Ending balance	11,311	10,458	11,383
Allowance for loan losses, Collectively Evaluated for impairment	11,311	10,458	11,383
Loans, Ending balance	725,754	652,494	636,357
Loans, Collectively Evaluated for impairment	725,754	652,494	636,357
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	368	456	447
Charge-offs	(607)	(878)	(972)
Recoveries	347	322	366
Provision	194	468	615
Ending balance	302	368	456
Allowance for loan losses, Collectively Evaluated for impairment	302	368	456
Loans, Ending balance	17,465	18,361	20,915
Loans, Collectively Evaluated for impairment	$ 17,465	$ 18,361	$ 20,915

A valuation allowance for financing receivables that are expected to be uncollectible.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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