Loans And Allowance For Loan Losses (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days for independent appraisals on real estate collateral	30 days
Loans held for sale	$ 4,400	$ 7,500
Period to sell loans from the date of closing	1 month
Accrued additional interest income	$ 1,000	800	$ 700
Cumulative charge-offs against noncovered nonaccrual loans	3,300	6,100
Interest income recognized on troubled debt restructurings	$ 900	1,200	$ 1,000
Troubled debt restructuring default period	90 days
Troubled debt restructuring Period	12 months
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 0
Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	$ 608,600
Percentage of loans to individuals and businesses	32.00%
Healthcare [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	$ 423,800
Percentage of loans to individuals and businesses	23.00%
Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal of mortgage loans serviced for others	$ 460,100	$ 432,300

Concentration risk credit risk financial instrument percentage.

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- Definition

Cumulative charge offs against noncovered nonaccrual loan.

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- Definition

Number Of Days For Independent Appraisals On Real Estate Collateral

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- Definition

Period to sell loans from the date of closing.

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No definition available.

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- Definition

Troubled debt restructuring default period

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No definition available.

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Troubled debt restructuring period.

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- Definition

Unpaid principal balance of mortgage loans serviced for others.

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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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No definition available.

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- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
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-Publisher FASB
-Name Accounting Standards Codification
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Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
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- Definition

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

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The gross interest income that would have been recorded in the period on troubled debt restructurings, if the loans had been current in accordance with their original terms and had been outstanding throughout the period or since origination, if held for part of the period.

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