Derivatives Two-way client interest rate swaps not designated as either fair value or cash flow hedges (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013 position
Derivative [Line Items]
Notional Amount	$ 11,498,000invest_DerivativeNotionalAmount	$ 8,470,000invest_DerivativeNotionalAmount
Asset	50,000	232,000
Liability	50,000	232,000
Life (Years)
Pay fixed - receive floating interest rate swap [Member]
Derivative [Line Items]
Number of positions		1
Notional Amount		4,235,000
Asset		0
Liability		232,000
Pay Rate		3.90%
Spread on variable rate		2.00%
Life (Years)		13 years 10 months 24 days
Pay floating - Receive fixed interest rate swap
Derivative [Line Items]
Number of positions		1
Notional Amount		4,235,000
Asset		232,000
Liability		0
Pay Rate		3.90%
Spread on variable rate		2.00%
Life (Years)		13 years 10 months 24 days
Interest Rate Swap One [Member] \| Pay fixed - receive floating interest rate swap [Member]
Derivative [Line Items]
Number of positions	1
Notional Amount	4,002,000
Asset	0
Liability	19,000
Pay Rate	3.90%
Spread on variable rate	2.00%
Life (Years)	12 years 10 months 24 days
Interest Rate Swap One [Member] \| Pay floating - Receive fixed interest rate swap
Derivative [Line Items]
Number of positions	1
Notional Amount	4,002,000
Asset	19,000
Liability	0
Pay Rate	3.90%
Spread on variable rate	2.00%
Life (Years)	12 years 10 months 24 days
Interest Rate Swap Two [Member] \| Pay fixed - receive floating interest rate swap [Member]
Derivative [Line Items]
Number of positions	1
Notional Amount	1,747,000
Asset	0
Liability	31,000
Pay Rate	4.09%
Spread on variable rate	1.80%
Life (Years)	9 years 10 months 24 days
Interest Rate Swap Two [Member] \| Pay floating - Receive fixed interest rate swap
Derivative [Line Items]
Number of positions	1
Notional Amount	1,747,000
Asset	$ 31,000
Pay Rate	4.09%
Spread on variable rate	1.80%
Life (Years)	9 years 10 months 24 days

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959

+ Details

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

- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.

+ References

+ Details

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

- Details

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

- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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