Loans, Major Classifications of Loans, Net of Income and Deferred Loan Origination Cost (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	$ 2,792,831,000	$ 2,733,824,000
Loans held for sale [Abstract]
Loans held for sale	1,993,000	2,264,000
Minimum [Member]
Loans held for sale [Abstract]
Threshold amount of loan requiring performance bond	500,000
Commercial [Member] \| Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	111,218,000	121,942,000
Commercial [Member] \| Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	978,412,000	948,626,000
Commercial [Member] \| Equipment Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	9,859,000	10,344,000
Commercial [Member] \| Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	363,909,000	352,048,000
Residential [Member] \| Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	57,914,000	62,412,000
Residential [Member] \| Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	707,582,000	712,465,000
Residential [Member] \| Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	88,113,000	88,335,000
Consumer [Member] \| Consumer Direct [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	121,620,000	122,136,000
Consumer [Member] \| Consumer Indirect [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income and deferred origination costs	$ 354,204,000	$ 315,516,000

Amount of loan requiring a performance bond.

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- Definition

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+ References

No definition available.

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524

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- Definition

Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

+ References

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