Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Investment securities available for sale, at fair value	$ 110,228	$ 111,518
U.S. government agencies
Investment securities available for sale, at fair value	150	155
Mortgage-backed securities of government sponsored entities
Investment securities available for sale, at fair value	85,582	85,830
Private-label collateralized mortgage obligations
Investment securities available for sale, at fair value	1,002	1,106
State and political subdivisions
Investment securities available for sale, at fair value	23,494	24,427
Fair Value measured on a Recurring Basis \| Fair value \| U.S. government agencies
Investment securities available for sale, at fair value	150	155
Fair Value measured on a Recurring Basis \| Fair value \| Mortgage-backed securities of government sponsored entities
Investment securities available for sale, at fair value	85,582	85,830
Fair Value measured on a Recurring Basis \| Fair value \| Private-label collateralized mortgage obligations
Investment securities available for sale, at fair value	1,002	1,106
Fair Value measured on a Recurring Basis \| Fair value \| State and political subdivisions
Investment securities available for sale, at fair value	23,494	24,427
Fair Value measured on a Recurring Basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| U.S. government agencies
Investment securities available for sale, at fair value
Fair Value measured on a Recurring Basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Mortgage-backed securities of government sponsored entities
Investment securities available for sale, at fair value
Fair Value measured on a Recurring Basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Private-label collateralized mortgage obligations
Investment securities available for sale, at fair value
Fair Value measured on a Recurring Basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| State and political subdivisions
Investment securities available for sale, at fair value
Fair Value measured on a Recurring Basis \| Significant Other Observable Inputs (Level 2) \| U.S. government agencies
Investment securities available for sale, at fair value	150	155
Fair Value measured on a Recurring Basis \| Significant Other Observable Inputs (Level 2) \| Mortgage-backed securities of government sponsored entities
Investment securities available for sale, at fair value	85,582	85,830
Fair Value measured on a Recurring Basis \| Significant Other Observable Inputs (Level 2) \| Private-label collateralized mortgage obligations
Investment securities available for sale, at fair value	1,002	1,106
Fair Value measured on a Recurring Basis \| Significant Other Observable Inputs (Level 2) \| State and political subdivisions
Investment securities available for sale, at fair value	23,494	24,427
Fair Value measured on a Recurring Basis \| Significant Unobservable Inputs (Level 3) \| U.S. government agencies
Investment securities available for sale, at fair value
Fair Value measured on a Recurring Basis \| Significant Unobservable Inputs (Level 3) \| Mortgage-backed securities of government sponsored entities
Investment securities available for sale, at fair value
Fair Value measured on a Recurring Basis \| Significant Unobservable Inputs (Level 3) \| Private-label collateralized mortgage obligations
Investment securities available for sale, at fair value
Fair Value measured on a Recurring Basis \| Significant Unobservable Inputs (Level 3) \| State and political subdivisions
Investment securities available for sale, at fair value

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

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-Publisher FASB

-Name FASB Staff Position (FSP)

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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+ Details