Allowance For Loan Losses (Schedule Of Allowance For Loan Loss By Portfolio Segment) (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	$ 19,730	$ 19,251
Allowance for loan loss, Charge-offs	(4,301)	(4,061)
Allowance for loan loss, Recoveries	1,541	1,267
Allowance for loan loss, Provision for acquired loans	39	164
Allowance for loan loss, Provision	2,545	2,929
Allowance for loan loss, Ending balance	19,554	19,550
Allowance for loan loss, Evaluated for impairment, Individually	705		$ 665
Allowance for loan loss, Evaluated for impairment, Collectively	18,640		18,848
Allowance for loan loss, Total	19,554		19,730
Loans, Evaluated for impairment, Individually	9,961		7,581
Loans, Evaluated for impairment, Collectively	3,086,504		3,028,202
Total	3,105,912		3,046,226
Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	209		217
Loans, Acquired with deteriorated credit quality	9,447		10,443
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	4,206	3,271
Allowance for loan loss, Charge-offs	(150)	(148)
Allowance for loan loss, Recoveries	57	13
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	946	918
Allowance for loan loss, Ending balance	5,059	4,054
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	5,057		4,200
Allowance for loan loss, Total	5,059		4,206
Loans, Evaluated for impairment, Individually	1,095		1,611
Loans, Evaluated for impairment, Collectively	203,588		183,741
Total	204,722		185,667
Commercial and industrial \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	2		6
Loans, Acquired with deteriorated credit quality	39		315
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	6,573	6,985
Allowance for loan loss, Charge-offs	(564)	(1,213)
Allowance for loan loss, Recoveries	92	447
Allowance for loan loss, Provision for acquired loans	39	164
Allowance for loan loss, Provision	166	(112)
Allowance for loan loss, Ending balance	6,306	6,271
Allowance for loan loss, Evaluated for impairment, Individually	705		665
Allowance for loan loss, Evaluated for impairment, Collectively	5,424		5,788
Allowance for loan loss, Total	6,306		6,573
Loans, Evaluated for impairment, Individually	8,866		5,970
Loans, Evaluated for impairment, Collectively	1,245,347		1,216,050
Total	1,260,906		1,229,516
Commercial real estate \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	177		120
Loans, Acquired with deteriorated credit quality	6,693		7,496
Residential real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	6,680	6,778
Allowance for loan loss, Charge-offs	(1,295)	(1,281)
Allowance for loan loss, Recoveries	286	113
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	218	1,414
Allowance for loan loss, Ending balance	5,889	7,024
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	5,861		6,589
Allowance for loan loss, Total	5,889		6,680
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	1,463,344		1,448,830
Total	1,465,942		1,451,462
Residential real estate \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	28		91
Loans, Acquired with deteriorated credit quality	2,598		2,632
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	1,417	1,463
Allowance for loan loss, Charge-offs	(256)	(300)
Allowance for loan loss, Recoveries	45	0
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	68	284
Allowance for loan loss, Ending balance	1,274	1,447
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	1,274		1,417
Allowance for loan loss, Total	1,274		1,417
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	139,702		141,965
Total	139,702		141,965
Home equity \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	0		0
Loans, Acquired with deteriorated credit quality	0		0
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	82	97
Allowance for loan loss, Charge-offs	(47)	(102)
Allowance for loan loss, Recoveries	46	109
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	(25)	(29)
Allowance for loan loss, Ending balance	56	75
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	54		82
Allowance for loan loss, Total	56		82
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	30,206		32,545
Total	30,323		32,545
Consumer \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	2		0
Loans, Acquired with deteriorated credit quality	117		0
DDA overdrafts
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	772	657
Allowance for loan loss, Charge-offs	(1,989)	(1,017)
Allowance for loan loss, Recoveries	1,015	585
Allowance for loan loss, Provision for acquired loans	0	0
Allowance for loan loss, Provision	1,172	454
Allowance for loan loss, Ending balance	970	$ 679
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	970		772
Allowance for loan loss, Total	970		772
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	4,317		5,071
Total	4,317		5,071
DDA overdrafts \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	0		0
Loans, Acquired with deteriorated credit quality	$ 0		$ 0

Loans, Acquired with Deteriorated Credit Quality

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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

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- 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.

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- Definition

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

+ References

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- Definition

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

+ References

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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

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- Definition

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

+ References

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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.

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- Definition

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

+ References

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- Definition

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

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

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- 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=66008989&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=66008989&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
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-Section S99
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707

Reference 5: 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

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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=65884687&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

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