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Intangible Assets (Details 1) (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Changes in fair value:

Balance at end of year

$ 2,762us-gaap_ServicingAssetAtFairValueAmount

$ 3,036us-gaap_ServicingAssetAtFairValueAmount

Mortgage servicing rights (MSRs)

Changes in mortgage servicing rights

Balance at beginning of year

3,036us-gaap_ServicingAssetAtFairValueAmount
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

2,549us-gaap_ServicingAssetAtFairValueAmount
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

2,308us-gaap_ServicingAssetAtFairValueAmount
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

Re-measurement to fair value upon election to measure servicing rights at fair value

0us-gaap_AssetsFairValueAdjustment
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

0us-gaap_AssetsFairValueAdjustment
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

742us-gaap_AssetsFairValueAdjustment
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

Originated mortgage servicing rights

302us-gaap_ServicingAssetAtFairValueAdditions
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

512us-gaap_ServicingAssetAtFairValueAdditions
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

830us-gaap_ServicingAssetAtFairValueAdditions
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

Changes in fair value:

Due to change in model inputs and assumptions

66us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

^[1]

723us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

^[1]

241us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

^[1]

Other changes in fair value

(642)us-gaap_ServicingAssetAtFairValueOtherChangesInFairValue
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

^[2]

(748)us-gaap_ServicingAssetAtFairValueOtherChangesInFairValue
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

^[2]

(1,572)us-gaap_ServicingAssetAtFairValueOtherChangesInFairValue
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

^[2]

Amortization

0us-gaap_ServicingAssetAtAmortizedValueAmortization1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

0us-gaap_ServicingAssetAtAmortizedValueAmortization1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

0us-gaap_ServicingAssetAtAmortizedValueAmortization1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

Balance at end of year

$ 2,762us-gaap_ServicingAssetAtFairValueAmount
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

$ 3,036us-gaap_ServicingAssetAtFairValueAmount
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

$ 2,549us-gaap_ServicingAssetAtFairValueAmount
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ServicingContractsMember

[1]	The change in fair value resulting from changes in valuation inputs or assumptions used in the valuation model reflects the change in discount rates and prepayment speed assumptions primarily due to changes in interest rates.
[2]	Other changes in fair value reflect changes due to customer payments and passage of time. The year ended December 31, 2012 includes a one time adjustment of a $538,000 correction of an immaterial prior period error due to changing from the straight-line amortization method to an accelerated amortization method of accounting for amortizing MSRs in prior years.

X

- Definition

Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

+ References

No definition available.

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X

- Definition

Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 4

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122739-111746

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X

- Definition

The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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X

- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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- Definition

The net Increase or Decrease in fair value as a result of changes in the inputs, assumptions, or model used to calculate the fair value of servicing assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(4)(i)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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- Definition

The net Increase or Decrease in fair value as a result of other changes that are not additions, disposals, or a result of change in the inputs, assumptions, or model used to calculate the fair value of servicing assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(4)(ii)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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