Income Taxes Temporary Differences (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Allowance for loan losses	$ 5,522	$ 5,348
Available-for-sale investment securities	559	5,353
Deferred compensation	1,108	1,070
Supplemental retirement	317	351
Core deposit premium and other intangible assets	341	255
Interest on non-accrual loans	35us-gaap_DeferredTaxAssetsDeferredIncome	31us-gaap_DeferredTaxAssetsDeferredIncome
Other-than-temporary impairment on securities	449	449
Other	412us-gaap_DeferredTaxAssetsOther	407us-gaap_DeferredTaxAssetsOther
Total gross deferred tax assets	8,743us-gaap_DeferredTaxAssetsGross	13,264us-gaap_DeferredTaxAssetsGross
Deferred loan costs	110	110
Goodwill	3,441	3,004
Prepaid expenses	296	258
FHLB stock dividend	285	285
Depreciation	600	731
Purchase accounting	0	66
Accumulated accretion	39	33
Total gross deferred tax liabilities	4,771us-gaap_DeferredIncomeTaxLiabilities	4,487us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax assets	$ 3,972us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 8,777us-gaap_DeferredTaxAssetsLiabilitiesNet

Amount of deferred tax liability attributable to taxable temporary differences.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Deferred Tax Liability

-URI http://asc.fasb.org/extlink&oid=6510232

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph b(2)

-Article 7