Allowance for Loan Losses (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Ending Balance Attributable to Loans
Individually evaluated for impairment	$ 3,223	$ 3,158
Collectively evaluated for impairment	16,169	15,862
Acquired with deteriorated credit quality	1,016	1,048
Ending Balance	20,408	20,068	25,272	21,958
Loans
Individually evaluated for impairment	16,804	18,862
Collectively evaluated for impairment	1,765,408	1,771,562
Acquired with deteriorated credit quality	10,232	10,398
Total	1,792,444	1,800,822
Commercial
Ending Balance Attributable to Loans
Individually evaluated for impairment	3,223	3,158
Collectively evaluated for impairment	8,376	8,421
Acquired with deteriorated credit quality	854	871
Ending Balance	12,453	12,450	14,144	10,987
Loans
Individually evaluated for impairment	16,768	18,825
Collectively evaluated for impairment	1,018,111	1,020,771
Acquired with deteriorated credit quality	7,839	8,001
Total	1,042,718	1,047,597
Residential
Ending Balance Attributable to Loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,419	1,408
Acquired with deteriorated credit quality	162	177
Ending Balance	1,581	1,585	5,400	5,426
Loans
Individually evaluated for impairment	36	37
Collectively evaluated for impairment	480,682	481,439
Acquired with deteriorated credit quality	2,393	2,397
Total	483,111	483,873
Consumer
Ending Balance Attributable to Loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,864	3,650
Acquired with deteriorated credit quality	0	0
Ending Balance	3,864	3,650	3,481	3,879
Loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	266,615	269,352
Acquired with deteriorated credit quality	0	0
Total	266,615	269,352
Unallocated
Ending Balance Attributable to Loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,510	2,383
Acquired with deteriorated credit quality	0	0
Ending Balance	$ 2,510	$ 2,383	$ 2,247	$ 1,666

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Recorded Investment in financing receivables.

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No definition available.

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- Definition

The balance of financing receivables that were acquired with deteriorated credit quality.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

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The valuation allowance for financing receivables acquired with deteriorated credit quality.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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

-Publisher FASB

-Name Accounting Standards Codification

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-Paragraph 11B

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

-Publisher FASB

-Name Accounting Standards Codification

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The balance of financing receivables that were collectively 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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 210

-Section S99

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-Subparagraph (SX 210.9-03.7(d))

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

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