Allowance For Loan Losses (Schedule Of Allowance For Loan Loss By Portfolio Segment) (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	$ 18,836	$ 19,730
Allowance for loan loss, Charge-offs	(4,292)	(4,301)
Allowance for loan loss, Recoveries	3,677	1,541
Allowance for loan loss, Provision	(1,910)	2,584
Allowance for loan loss, Ending balance	16,311	19,554
Allowance for loan loss, Evaluated for impairment, Individually	355		$ 647
Allowance for loan loss, Evaluated for impairment, Collectively	15,892		17,858
Allowance for loan loss, Total	16,311		18,836
Loans, Evaluated for impairment, Individually	10,550		9,667
Loans, Evaluated for impairment, Collectively	3,128,669		3,109,146
Total	3,146,697		3,127,410
Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	64		331
Loans, Acquired with deteriorated credit quality	7,478		8,597
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	4,571	4,206
Allowance for loan loss, Charge-offs	(724)	(150)
Allowance for loan loss, Recoveries	1,625	57
Allowance for loan loss, Provision	(1,583)	946
Allowance for loan loss, Ending balance	3,889	5,059
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	3,885		4,567
Allowance for loan loss, Total	3,889		4,571
Loans, Evaluated for impairment, Individually	656		849
Loans, Evaluated for impairment, Collectively	212,959		207,429
Total	213,815		208,484
Commercial and industrial \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	4		4
Loans, Acquired with deteriorated credit quality	200		206
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	6,183	6,573
Allowance for loan loss, Charge-offs	(349)	(564)
Allowance for loan loss, Recoveries	538	92
Allowance for loan loss, Provision	(1,775)	205
Allowance for loan loss, Ending balance	4,597	6,306
Allowance for loan loss, Evaluated for impairment, Individually	355		647
Allowance for loan loss, Evaluated for impairment, Collectively	4,189		5,313
Allowance for loan loss, Total	4,597		6,183
Loans, Evaluated for impairment, Individually	9,894		8,818
Loans, Evaluated for impairment, Collectively	1,252,989		1,263,076
Total	1,268,052		1,277,576
Commercial real estate \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	53		223
Loans, Acquired with deteriorated credit quality	5,169		5,682
Residential real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	5,212	6,680
Allowance for loan loss, Charge-offs	(464)	(1,295)
Allowance for loan loss, Recoveries	275	286
Allowance for loan loss, Provision	(557)	218
Allowance for loan loss, Ending balance	4,466	5,889
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	4,466		5,112
Allowance for loan loss, Total	4,466		5,212
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	1,483,829		1,465,685
Total	1,485,823		1,468,278
Residential real estate \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	0		100
Loans, Acquired with deteriorated credit quality	1,994		2,593
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	1,138	1,417
Allowance for loan loss, Charge-offs	(219)	(256)
Allowance for loan loss, Recoveries	0	45
Allowance for loan loss, Provision	385	68
Allowance for loan loss, Ending balance	1,304	1,274
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	1,304		1,138
Allowance for loan loss, Total	1,304		1,138
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	143,540		139,499
Total	143,540		139,499
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	62	82
Allowance for loan loss, Charge-offs	(560)	(47)
Allowance for loan loss, Recoveries	130	46
Allowance for loan loss, Provision	709	(25)
Allowance for loan loss, Ending balance	341	56
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	334		58
Allowance for loan loss, Total	341		62
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	31,754		29,046
Total	31,869		29,162
Consumer \| Receivables Acquired with Deteriorated Credit Quality [Domain]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Acquired with deteriorated credit quality	7		4
Loans, Acquired with deteriorated credit quality	115		116
DDA overdrafts
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan loss, Beginning balance	1,670	772
Allowance for loan loss, Charge-offs	(1,976)	(1,989)
Allowance for loan loss, Recoveries	1,109	1,015
Allowance for loan loss, Provision	911	1,172
Allowance for loan loss, Ending balance	1,714	$ 970
Allowance for loan loss, Evaluated for impairment, Individually	0		0
Allowance for loan loss, Evaluated for impairment, Collectively	1,714		1,670
Allowance for loan loss, Total	1,714		1,670
Loans, Evaluated for impairment, Individually	0		0
Loans, Evaluated for impairment, Collectively	3,598		4,411
Total	3,598		4,411
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

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.

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- Definition

The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were 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.

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

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

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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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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.

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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.

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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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