Fair Value Assets and Liabilities (Details 2) (Non-recurring basis, USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Fair value measurements
Liabilities at fair value	$ 0us-gaap_LiabilitiesFairValueDisclosure	$ 0us-gaap_LiabilitiesFairValueDisclosure
Impaired Loans
Fair value measurements
Adjustments to Fair Value	(7)	(333)
Level 3 \| Impaired Loans
Fair value measurements
Assets at Fair Value	310	2,492
Total Assets at Fair Value \| Impaired Loans
Fair value measurements
Assets at Fair Value	$ 310	$ 2,492

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Fair value of financial and nonfinancial obligations.

+ References

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