Allowance for Loan and Lease Losses (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Originated Loans and Leases [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	$ 9,166	$ 8,712
Unpaid Principal Balance With No Related Allowance	9,852	9,434
Recorded Investment With Related Allowance	1,678	1,654
Unpaid Principal Balance With Related Allowance	1,702	1,654
Related Allowance	735	652
Recorded Investment	10,844	10,366
Unpaid Principal Balance	11,554	11,088
Originated Loans and Leases [Member] \| Commercial and Industrial Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	248	1,283
Unpaid Principal Balance With No Related Allowance	262	1,307
Originated Loans and Leases [Member] \| Commercial Real Estate Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	7,994	6,021
Unpaid Principal Balance With No Related Allowance	8,646	6,628
Recorded Investment With Related Allowance	1,678	1,654
Unpaid Principal Balance With Related Allowance	1,702	1,654
Related Allowance	735	652
Originated Loans and Leases [Member] \| Residential Real Estate - Home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	924	1,408
Unpaid Principal Balance With No Related Allowance	944	1,499
Acquired Loans and Leases [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	4,016	1,445
Unpaid Principal Balance With No Related Allowance	4,279	1,708
Recorded Investment With Related Allowance	1,453	818
Unpaid Principal Balance With Related Allowance	1,453	818
Related Allowance	514	514
Recorded Investment	5,469	2,263
Unpaid Principal Balance	5,732	2,526
Acquired Loans and Leases [Member] \| Commercial and Industrial Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	389	64
Unpaid Principal Balance With No Related Allowance	626	64
Recorded Investment With Related Allowance	812	564
Unpaid Principal Balance With Related Allowance	812	564
Related Allowance	354	414
Acquired Loans and Leases [Member] \| Commercial Real Estate - Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	372
Unpaid Principal Balance With No Related Allowance	372
Acquired Loans and Leases [Member] \| Commercial Real Estate Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	2,308	941
Unpaid Principal Balance With No Related Allowance	2,334	1,204
Recorded Investment With Related Allowance	641	254
Unpaid Principal Balance With Related Allowance	641	254
Related Allowance	160	100
Acquired Loans and Leases [Member] \| Residential Real Estate - Home equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	947	440
Unpaid Principal Balance With No Related Allowance	$ 947	$ 440

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953550-111524

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Amount of allowance for credit losses related to recorded investment.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524

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+ References

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524

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Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524

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