Investments - Textual (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities
Available-for-sale Securities Pledged as Collateral	$ 97,136
Available-for-sale Securities, Gross Unrealized Gain (Loss)	10,756	7,008
Available-for-sale Securities, Gross Unrealized Losses	1,654	2,666
Gross Unrealized Gains	12,410	9,674
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Available-for-sale Securities, Number of Positions	182
Debt Securities, Amortized Cost	106,675	101,030
Available-for-sale Securities, Gross Unrealized Losses	272	331
Gross Unrealized Gains	9,411	7,732
U.S. Government agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Available-for-sale Securities, Number of Positions	187
Debt Securities, Amortized Cost	190,654	204,222
Available-for-sale Securities, Gross Unrealized Losses	592	1,080
Gross Unrealized Gains	2,410	1,402
Private label residential mortgage backed securities
Schedule of Available-for-sale Securities
Available-for-sale Securities, Gross Unrealized Gain (Loss)	581
Available-for-sale Securities, Number of Positions	24
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	8
Debt Securities, Amortized Cost	7,250	8,408
Available-for-sale Securities, Gross Unrealized Losses	790	1,255
Available-for-sale, Securities in Unrealized Gain Positions, Number of Positions	16
Gross Unrealized Gains	209	245
Other equity securities
Schedule of Available-for-sale Securities
Available-for-sale Securities, Gross Unrealized Losses	0	0
Gross Unrealized Gains	380	295
Less than 12 months \| Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	6
Less than 12 months \| U.S. Government agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	48
Greater than 12 months \| Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	2
Greater than 12 months \| U.S. Government agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	3
Below investment grade \| Private label residential mortgage backed securities
Schedule of Available-for-sale Securities
Available-for-sale Securities, Gross Unrealized Gain (Loss)	(765)
Available-for-sale Securities, Number of Positions	7
Debt Securities, Amortized Cost	$ 5,586

Available-for-sale, Securities in Unrealized Gain Positions, Qualitative Disclosure, Number of Positions

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Available-for-sale Securities, Number of Positions

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- Definition

This item represents the cost of debt 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

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- 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

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 22

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The net amount of gross unrealized gains (losses) for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

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-Publisher FASB

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

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Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired.

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-Name FASB Staff Position (FSP)

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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

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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.

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