Allowance For Loan Losses (Schedule Of Allowance For Loan Loss By Portfolio Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	$ 19,251	$ 20,074
Allowance for loan loss, Charge-offs	(1,170)	(1,164)
Allowance for loan loss, Recoveries	695	305
Allowance for loan loss, Provision for acquired loans	40	246
Allowance for loan loss, Provision	499	642
Allowance for loan loss, Ending balance	19,315	20,103
Allowance for loan loss, Evaluated for impairment, Individually	0		$ 0
Allowance for loan loss, Evaluated for impairment, Collectively	18,744		18,422
Allowance for loan loss, Total	19,315		19,251
Loans, Evaluated for impairment, Individually	7,235		8,482
Loans, Evaluated for impairment, Collectively	2,856,947		2,839,447
Gross loans	2,877,117		2,862,534
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	3,271	1,582
Allowance for loan loss, Charge-offs	(1)	(94)
Allowance for loan loss, Recoveries	1	18
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	632	(378)
Allowance for loan loss, Ending balance	3,903	1,128
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	3,899		3,267
Allowance for loan loss, Total	3,903		3,271
Loans, Evaluated for impairment, Individually	2,349		2,349
Loans, Evaluated for impairment, Collectively	162,878		162,662
Gross loans	165,549		165,340
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	6,985	8,845
Allowance for loan loss, Charge-offs	(302)	(337)
Allowance for loan loss, Recoveries	384	8
Allowance for loan loss, Provision for acquired loans	40	246
Allowance for loan loss, Provision	(703)	827
Allowance for loan loss, Ending balance	6,404	9,589
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	5,850		6,173
Allowance for loan loss, Total	6,404		6,985
Loans, Evaluated for impairment, Individually	4,886		6,133
Loans, Evaluated for impairment, Collectively	1,120,311		1,109,327
Gross loans	1,135,625		1,127,581
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	6,778	7,208
Allowance for loan loss, Charge-offs	(405)	(257)
Allowance for loan loss, Recoveries	39	10
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	347	(60)
Allowance for loan loss, Ending balance	6,759	6,901
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	6,758		6,777
Allowance for loan loss, Total	6,759		6,778
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	1,395,301		1,382,762
Gross loans	1,395,670		1,383,133
Home equity - junior liens (including lines of credit) [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	1,463	1,495
Allowance for loan loss, Charge-offs	(106)	(91)
Allowance for loan loss, Recoveries	0	0
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	45	180
Allowance for loan loss, Ending balance	1,402	1,584
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	1,390		1,451
Allowance for loan loss, Total	1,402		1,463
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	140,985		145,338
Gross loans	142,694		147,036
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	97	85
Allowance for loan loss, Charge-offs	(38)	(74)
Allowance for loan loss, Recoveries	29	28
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	5	140
Allowance for loan loss, Ending balance	93	179
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	93		97
Allowance for loan loss, Total	93		97
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	34,647		35,997
Gross loans	34,754		36,083
Demand Deposit Account Overdrafts [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	657	859
Allowance for loan loss, Charge-offs	(318)	(311)
Allowance for loan loss, Recoveries	242	241
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	173	(67)
Allowance for loan loss, Ending balance	754	$ 722
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	754		657
Allowance for loan loss, Total	754		657
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	2,825		3,361
Gross loans	2,825		3,361
Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	571		829
Loans, Acquired with Deteriorated Credit Quality	12,935		14,605
Receivables Acquired with Deteriorated Credit Quality [Domain] \| Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	4		4
Loans, Acquired with Deteriorated Credit Quality	322		329
Receivables Acquired with Deteriorated Credit Quality [Domain] \| Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	554		812
Loans, Acquired with Deteriorated Credit Quality	10,428		12,121
Receivables Acquired with Deteriorated Credit Quality [Domain] \| Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	1		1
Loans, Acquired with Deteriorated Credit Quality	369		371
Receivables Acquired with Deteriorated Credit Quality [Domain] \| Home equity - junior liens (including lines of credit) [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	12		12
Loans, Acquired with Deteriorated Credit Quality	1,709		1,698
Receivables Acquired with Deteriorated Credit Quality [Domain] \| Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	0		0
Loans, Acquired with Deteriorated Credit Quality	107		86
Receivables Acquired with Deteriorated Credit Quality [Domain] \| Demand Deposit Account Overdrafts [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses	0		0
Loans, Acquired with Deteriorated Credit Quality	$ 0		$ 0

Loans, Acquired with Deteriorated Credit Quality

No definition available.

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Balance Type:	debit
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- Definition

Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538

+ Details

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Period Type:	instant

- Definition

Amount of expense related to loan loss not accounted for as debt securities, with evidence of deterioration of credit quality.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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- Definition

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

+ References

+ Details

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- Definition

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

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

+ Details

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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- Definition

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.

+ References

+ Details

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