Loans Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Recorded Investment [Abstract]
With No Related Allowance	$ 3,782	$ 4,488
With a Related Allowance	559	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	3,782	4,488
With a Related Allowance	559	0
Average Recorded Balance [Abstract]
With No Related Allowance	3,634	4,178	4,132
With a Related Allowance	546	694	694
Interest Income Recognized [Abstract]
With No Related Allowance	19	21	91
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	64
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	109
Commercial [Member]
Recorded Investment [Abstract]
With No Related Allowance	494	221
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	494	221
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	348	133	56
With a Related Allowance	0	694	694
Interest Income Recognized [Abstract]
With No Related Allowance	11	4	6
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Commercial Construction [Member]
Recorded Investment [Abstract]
With No Related Allowance	0	0
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	0	0
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Interest Income Recognized [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Commercial Real Estate [Member]
Recorded Investment [Abstract]
With No Related Allowance	1,492	1,785
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	1,492	1,785
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	1,492	2,157	2,241
With a Related Allowance	0	0	0
Interest Income Recognized [Abstract]
With No Related Allowance	0	0	64
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	64
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Other Consumer [Member]
Recorded Investment [Abstract]
With No Related Allowance	0	0
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	0	0
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Interest Income Recognized [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Automobile [Member]
Recorded Investment [Abstract]
With No Related Allowance	118	173
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	118	173
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	121	188	236
With a Related Allowance	0	0	0
Interest Income Recognized [Abstract]
With No Related Allowance	7	9	12
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Residential [Member]
Recorded Investment [Abstract]
With No Related Allowance	1,678	2,309
With a Related Allowance	559	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	1,678	2,309
With a Related Allowance	559	0
Average Recorded Balance [Abstract]
With No Related Allowance	1,673	1,700	1,599
With a Related Allowance	546	0	0
Interest Income Recognized [Abstract]
With No Related Allowance	1	8	9
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	$ 109

Name:	us-gaap_ImpairedFinancingReceivableAverageRecordedInvestmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethodAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethodAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ImpairedFinancingReceivableRecordedInvestmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of allowance for credit losses related to recorded investment.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalanceAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of average investment of impaired financing receivables for which there is no 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 (c)(1)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5258-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of investment in impaired financing receivables for which there is no 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=35738203&loc=SL6953550-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of interest income on financing receivables, for which there is a related allowance for credit losses, recognized on a cash-basis method of accounting that the financing receivables were impaired.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerLoansAutoFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerOtherFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPrimeFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: