Loans (Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Gross	$ 1,817,471	$ 1,802,105
Net Deferred Loan Costs (Fees)	31,369	31,514
Loans, Net	1,848,840	1,833,619
Allowance for loan losses	(27,152)	(26,736)
Total loans, net	1,821,688	1,806,883
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Gross	268,308	265,751
Net Deferred Loan Costs (Fees)	44	15
Loans, Net	268,352	265,766
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Gross	469,725	470,312
Net Deferred Loan Costs (Fees)	(962)	(1,028)
Loans, Net	468,763	469,284
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Gross	110,290	113,101
Net Deferred Loan Costs (Fees)	(126)	(56)
Loans, Net	110,164	113,045
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Gross	326,744	320,658
Net Deferred Loan Costs (Fees)	5,604	5,428
Loans, Net	332,348	326,086
Consumer Indirect [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Gross	620,916	609,390
Net Deferred Loan Costs (Fees)	26,630	26,978
Loans, Net	647,546	636,368
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Gross	21,488	22,893
Net Deferred Loan Costs (Fees)	179	177
Loans, Net	$ 21,667	$ 23,070

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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.

+ References

Reference 1: 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))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Name Accounting Standards Codification

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-SubTopic 30

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts 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 4

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524

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-Name Accounting Standards Codification

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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.

+ References

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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

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Amount after allowance and 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 and loans held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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