Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value Measurements [Abstract]
Percentage of selling costs reduced in sales comparison approach (in hundredths)	10.00%
Available-for-Sale Securities: [Abstract]
Fair/Book Value	$ 366,542us-gaap_AvailableForSaleSecurities	$ 404,639us-gaap_AvailableForSaleSecurities
Recurring [Member]
Available-for-Sale Securities: [Abstract]
Government Agency & Government-Sponsored Entities	78,109	28,436
Mortgage Backed Securities	287,948	324,929
Corporate Securities		49,380
Other	485	1,894
Fair/Book Value	366,542	404,639
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available-for-Sale Securities: [Abstract]
Government Agency & Government-Sponsored Entities	10,005	23,394
Mortgage Backed Securities	0	0
Corporate Securities		8,191
Other	175	1,584
Fair/Book Value	10,180	33,169
Recurring [Member] \| Other Observable Inputs (Level 2) [Member]
Available-for-Sale Securities: [Abstract]
Government Agency & Government-Sponsored Entities	68,104	5,042
Mortgage Backed Securities	287,948	324,929
Corporate Securities		41,189
Other	310	310
Fair/Book Value	356,362	371,470
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Available-for-Sale Securities: [Abstract]
Government Agency & Government-Sponsored Entities	0	0
Mortgage Backed Securities	0	0
Corporate Securities		0
Other	0	0
Fair/Book Value	0	0
Nonrecurring [Member]
Impaired Loans [Abstract]
Commercial Real Estate	90
Residential 1st Mortgage	748	614
Home Equity Lines and Loans	759	551
Agricultural	346	366
Commercial	3,832	820
Consumer	6
Total Impaired Loans	5,781	2,351
Other Real Estate [Abstract]
Real Estate Construction	2,441	2,399
Agricultural Real Estate	858	2,212
Total Other Real Estate	3,299	4,611
Total Assets Measured at Fair Value On a Non-Recurring Basis	9,080	6,962
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Impaired Loans [Abstract]
Commercial Real Estate	0
Residential 1st Mortgage	0	0
Home Equity Lines and Loans	0	0
Agricultural	0	0
Commercial	0	0
Consumer	0
Total Impaired Loans	0	0
Other Real Estate [Abstract]
Real Estate Construction	0	0
Agricultural Real Estate	0	0
Total Other Real Estate	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	0
Nonrecurring [Member] \| Other Observable Inputs (Level 2) [Member]
Impaired Loans [Abstract]
Commercial Real Estate	0
Residential 1st Mortgage	0	0
Home Equity Lines and Loans	0	0
Agricultural	0	0
Commercial	0	0
Consumer	0
Total Impaired Loans	0	0
Other Real Estate [Abstract]
Real Estate Construction	0	0
Agricultural Real Estate	0	0
Total Other Real Estate	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Impaired Loans [Abstract]
Commercial Real Estate	90
Residential 1st Mortgage	748	614
Home Equity Lines and Loans	759	551
Agricultural	346	366
Commercial	3,832	820
Consumer	6
Total Impaired Loans	5,781	2,351
Other Real Estate [Abstract]
Real Estate Construction	2,441	2,399
Agricultural Real Estate	858	2,212
Total Other Real Estate	3,299	4,611
Total Assets Measured at Fair Value On a Non-Recurring Basis	$ 9,080	$ 6,962

Fair value disclosure of other real estate related to Agricultural Real Estate.

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Fair value disclosure of other real estate related to agricultural.

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- Definition

Fair value disclosure of secured and unsecured loans for purposes such as seasonal working capital needs, inventory financing, equipment purchases and acquisitions.

+ References

No definition available.

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Fair value disclosure of loans solely used for business purposes.

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- Definition

Fair value disclosure of loans for personal, family, or household use excluding real estate.

+ References

No definition available.

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- Definition

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. Government Agencies Debentures, notes and other debt securities issued by US government agencies, for example but not limited to, Government National Mortgage Association (GNMA or Ginnie Mae) which have been categorized as available-for-sale. Excludes US treasury Securities. Government Sponsored Entities (GESs) Debentures, bonds and other debt securities issued by US government sponsored entities, for example, but not limited to, Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB) which have been categorized as available-for-sale.

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- Definition

Fair value disclosure of revolving, open-end loan extended under a line of credit and secured by the borrower's residential property.

+ References

No definition available.

+ Details

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents impaired loan receivable as presented on the statement of financial position which may include mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts, or any other loans which are due the Company as of the balance sheet date.

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Refers to percentage of selling costs reduced in sales comparison approach.

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Fair value disclosure of other real estate related to construction.

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No definition available.

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- Definition

Fair value disclosure of loans to purchase or refinance residential real estate for example, but not limited to a home, in which the real estate itself serves as collateral for the loan.

+ References

No definition available.

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- Definition

Total fair value disclosure of other real estate assets.

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-Subparagraph (aa)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

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- Definition

Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Mortgage-Backed Securities

-URI http://asc.fasb.org/extlink&oid=6517959

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- Definition

Fair value portion of other assets.

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