Securities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Available for sale [Abstract]
Amortized Costs	$ 194,538
Gross Unrealized Gains	4,420
Gross Unrealized Losses	879
Fair Values	198,079	174,918
U.S. Treasury [Member]
Available for sale [Abstract]
Amortized Costs	2,006
Gross Unrealized Gains	86
Gross Unrealized Losses	0
Fair Values	2,092
U.S. Government agencies [Member]
Available for sale [Abstract]
Amortized Costs	126,960
Gross Unrealized Gains	1,343
Gross Unrealized Losses	684
Fair Values	127,619
Mortgage-backed securities [Member]
Available for sale [Abstract]
Amortized Costs	4,842
Gross Unrealized Gains	455
Gross Unrealized Losses	0
Fair Values	5,297
States and political subdivisions [Member]
Available for sale [Abstract]
Amortized Costs	38,253
Gross Unrealized Gains	2,006
Gross Unrealized Losses	3
Fair Values	40,256
Corporate [Member]
Available for sale [Abstract]
Amortized Costs	18,215
Gross Unrealized Gains	494
Gross Unrealized Losses	21
Fair Values	18,688
Federal Home Loan Bank stock [Member]
Available for sale [Abstract]
Amortized Costs	1,596
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Values	1,596
Federal Reserve Bank stock [Member]
Available for sale [Abstract]
Amortized Costs	92
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Values	92
Other Securities [Member]
Available for sale [Abstract]
Amortized Costs	2,574
Gross Unrealized Gains	36
Gross Unrealized Losses	171
Fair Values	$ 2,439

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

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 6: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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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

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-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

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-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.

+ Details

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details