Loans and Allowance for Credit Losses (Details 3) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	$ 7,695
TDR Balance	7,917
Troubled Debt Restructuring [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	23,748	$ 32,401
New TDRs	1,837	0
Disbursements (Payments)	(423)	1,141
Charge Offs	(619)	(1,166)
Reclassification/Transfers In(Out)	(238)	0
Payoffs	0	(1,352)
TDR Balance	24,305	31,024
Related allowance	984	192
Accruing Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	16,674	26,088
New TDRs	1,837	0
Disbursements (Payments)	(300)	1,259
Charge Offs	0	(863)
Reclassification/Transfers In(Out)	64	197
Payoffs	0	(1,279)
TDR Balance	18,275	25,402
Related allowance	323	192
Nonaccrual Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	7,074	6,313
New TDRs	0	0
Disbursements (Payments)	(123)	(118)
Charge Offs	(619)	(303)
Reclassification/Transfers In(Out)	(302)	(197)
Payoffs	0	(73)
TDR Balance	6,030	5,622
Related allowance	661	0
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	1,303
TDR Balance	1,852
Construction [Member] \| Accruing Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	4,022	1,620
New TDRs	0	0
Disbursements (Payments)	(39)	(51)
Charge Offs	0	(314)
Reclassification/Transfers In(Out)	142	2,643
Payoffs	0	0
TDR Balance	4,125	3,898
Related allowance	35	1
Construction [Member] \| Nonaccrual Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	3,321	3,561
New TDRs	0	0
Disbursements (Payments)	(100)	(5)
Charge Offs	(579)	(35)
Reclassification/Transfers In(Out)	2,911	760
Payoffs	0	0
TDR Balance	5,553	4,281
Related allowance	661	0
Residential real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	2,834
TDR Balance	2,318
Residential real estate [Member] \| Accruing Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	6,368	14,582
New TDRs	1,837	0
Disbursements (Payments)	(245)	1,373
Charge Offs	0	0
Reclassification/Transfers In(Out)	(78)	398
Payoffs	0	(158)
TDR Balance	7,882	16,195
Related allowance	267	185
Residential real estate [Member] \| Nonaccrual Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	3,382	1,884
New TDRs	0	0
Disbursements (Payments)	(18)	(31)
Charge Offs	0	(203)
Reclassification/Transfers In(Out)	(2,911)	(957)
Payoffs	0	(73)
TDR Balance	453	620
Related allowance	0	0
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	2,379
TDR Balance	2,616
Commercial real estate [Member] \| Accruing Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	6,237	9,791
New TDRs	0	0
Disbursements (Payments)	(9)	(48)
Charge Offs	0	(549)
Reclassification/Transfers In(Out)	0	(2,844)
Payoffs	0	(1,097)
TDR Balance	6,228	5,253
Related allowance	21	6
Commercial real estate [Member] \| Nonaccrual Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	346	842
New TDRs	0	0
Disbursements (Payments)	(4)	(81)
Charge Offs	(40)	(65)
Reclassification/Transfers In(Out)	(302)	0
Payoffs	0	0
TDR Balance	0	696
Related allowance	0	0
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	448
TDR Balance	505
Commercial [Member] \| Accruing Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	47	95
New TDRs	0	0
Disbursements (Payments)	(7)	(15)
Charge Offs	0	0
Reclassification/Transfers In(Out)	0	0
Payoffs	0	(24)
TDR Balance	40	56
Related allowance	0	0
Commercial [Member] \| Nonaccrual Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	0	0
New TDRs	0	0
Disbursements (Payments)	0	0
Charge Offs	0	0
Reclassification/Transfers In(Out)	0	0
Payoffs	0	0
TDR Balance	0	0
Related allowance	0	0
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	229
TDR Balance	168
Consumer [Member] \| Accruing Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	0	0
New TDRs	0	0
Disbursements (Payments)	0	0
Charge Offs	0	0
Reclassification/Transfers In(Out)	0	0
Payoffs	0	0
TDR Balance	0	0
Related allowance	0	0
Consumer [Member] \| Nonaccrual Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR Balance	25	26
New TDRs	0	0
Disbursements (Payments)	(1)	(1)
Charge Offs	0	0
Reclassification/Transfers In(Out)	0	0
Payoffs	0	0
TDR Balance	24	25
Related allowance	$ 0	$ 0

Amount of disbursements to allowance reserve for credit loss arising from purchase of loan and lease portfolios.

No definition available.

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- Definition

Amount of payoffs to allowance reserve for credit loss arising from purchase of loan and lease portfolios.

+ References

No definition available.

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- Definition

Amount of addition to allowance reserve for credit loss arising from purchase of loan and lease portfolios.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

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

Reference 2: 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))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Amount of increase (decrease) of allowance reserve for credit loss.

+ 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))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Amount, after recoveries, of loans and leases that have been written-off.

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

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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- Definition

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 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

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-Paragraph 2

-Subparagraph (b)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

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