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Fair Value Measurements (Details 4) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Carrying Amount [Member]
Financial Assets
Cash and short-term investments	$ 37,585	$ 29,524
Securities	87,267	91,665
Loans, net	370,136	379,503
Loans held for sale		274
Accrued interest receivable	1,536	1,620
Financial Liabilities
Deposits	458,694	469,172
Other borrowings	14,088	19,100
Trust preferred capital notes	9,279	9,279
Accrued interest payable	316	366
Fair Value [Member]
Financial Assets
Cash and short-term investments	37,585	29,524
Securities	87,267	91,665
Loans, net	374,216	383,557
Loans held for sale		274
Accrued interest receivable	1,536	1,620
Financial Liabilities
Deposits	460,979	471,771
Other borrowings	14,261	19,137
Trust preferred capital notes	8,820	8,576
Accrued interest payable	316	366
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial Liabilities
Deposits
Other borrowings
Trust preferred capital notes
Accrued interest payable
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Financial Assets
Cash and short-term investments	37,585
Securities	146
Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Financial Assets
Securities	87,121
Loans, net	364,828
Accrued interest receivable	1,536
Financial Liabilities
Deposits	460,979
Other borrowings	14,261
Trust preferred capital notes	8,820
Accrued interest payable	316
Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Financial Assets
Loans, net	$ 9,388

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-Name Accounting Standards Codification

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-SubTopic 10

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-Name Accounting Standards Codification

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