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Disclosures About Fair Value Measurements (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair Value [Member]
Fair values based on US GAAP measurements, and recorded book balances
Cash and cash equivalents	$ 33,975	$ 34,783
Investment securities	192,353	195,837
Regulatory stock	7,442	8,016
Loans held for sale	6,099	7,195
Net loans, net of allowance for loan loss and unearned income	680,394	655,357
Accrued income receivable	3,159	3,216
Bank owned life insurance	35,779	35,351
Fair value of swap asset	266	346
Deposits with no stated maturities	517,930	482,859
Deposits with stated maturities	341,718	338,683
Short-term borrowings		15,765
All other borrowings	21,035	23,606
Accrued interest payable	2,031	2,523
Fair value of swap liability	266	346
Carrying value [Member]
Fair values based on US GAAP measurements, and recorded book balances
Cash and cash equivalents	33,975	34,783
Investment securities	191,791	195,203
Regulatory stock	7,442	8,016
Loans held for sale	6,009	7,110
Net loans, net of allowance for loan loss and unearned income	671,489	649,114
Accrued income receivable	3,159	3,216
Bank owned life insurance	35,779	35,351
Fair value of swap asset	266	346
Deposits with no stated maturities	517,930	482,859
Deposits with stated maturities	336,087	333,561
Short-term borrowings		15,765
All other borrowings	16,085	19,085
Accrued interest payable	2,031	2,523
Fair value of swap liability	266	346
Level 1 [Member]
Fair values based on US GAAP measurements, and recorded book balances
Cash and cash equivalents	33,975
Investment securities
Regulatory stock	7,442
Loans held for sale	6,099
Net loans, net of allowance for loan loss and unearned income
Accrued income receivable	3,159
Bank owned life insurance	35,779
Fair value of swap asset
Deposits with no stated maturities	517,930
Deposits with stated maturities
All other borrowings
Accrued interest payable	2,031
Fair value of swap liability
Level 2 [Member]
Fair values based on US GAAP measurements, and recorded book balances
Cash and cash equivalents
Investment securities	188,429
Regulatory stock
Loans held for sale
Net loans, net of allowance for loan loss and unearned income
Accrued income receivable
Bank owned life insurance
Fair value of swap asset	266
Deposits with no stated maturities
Deposits with stated maturities
All other borrowings
Accrued interest payable
Fair value of swap liability	266
Level 3 [Member]
Fair values based on US GAAP measurements, and recorded book balances
Cash and cash equivalents
Investment securities	3,924
Regulatory stock
Loans held for sale
Net loans, net of allowance for loan loss and unearned income	680,394
Accrued income receivable
Bank owned life insurance
Fair value of swap asset
Deposits with no stated maturities
Deposits with stated maturities	341,718
All other borrowings	21,035
Accrued interest payable
Fair value of swap liability

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-Paragraph 8

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-SubTopic 10

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-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 17

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