Investment Securities (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
The gross unrealized losses and fair value for investment securities by investment category and continuous unrealized loss position time
Available-for-sale securities, Less than Twelve Months, Fair Value	$ 50,954	$ 33,466
Available-for-sale securities, Less than Twelve Months Gross Unrealized Losses	(456)	(114)
Available-for-sale securities, Twelve Months or Greater, Fair Value	76	82
Available-for-sale securities, Twelve Months or Greater Gross Unrealized Losses	(1)	(1)
Available-for-sale securities, Total, Fair Value	51,030	33,548
Available-for-sale securities, Total, Gross Unrealized Losses	(457)	(115)
U.S. Government corporations and agencies [Member]
The gross unrealized losses and fair value for investment securities by investment category and continuous unrealized loss position time
Available-for-sale securities, Less than Twelve Months, Fair Value	7,986	6,993
Available-for-sale securities, Less than Twelve Months Gross Unrealized Losses	(14)	(7)
Available-for-sale securities, Total, Fair Value	7,986	6,993
Available-for-sale securities, Total, Gross Unrealized Losses	(14)	(7)
Obligations of states and political subdivisions [Member]
The gross unrealized losses and fair value for investment securities by investment category and continuous unrealized loss position time
Available-for-sale securities, Less than Twelve Months, Fair Value	5,568	2,721
Available-for-sale securities, Less than Twelve Months Gross Unrealized Losses	(107)	(55)
Available-for-sale securities, Total, Fair Value	5,568	2,721
Available-for-sale securities, Total, Gross Unrealized Losses	(107)	(55)
Mortgage-Backed Securities [Member]
The gross unrealized losses and fair value for investment securities by investment category and continuous unrealized loss position time
Available-for-sale securities, Less than Twelve Months, Fair Value	37,400	23,752
Available-for-sale securities, Less than Twelve Months Gross Unrealized Losses	(335)	(52)
Available-for-sale securities, Twelve Months or Greater, Fair Value	76	82
Available-for-sale securities, Twelve Months or Greater Gross Unrealized Losses	(1)	(1)
Available-for-sale securities, Total, Fair Value	37,476	23,834
Available-for-sale securities, Total, Gross Unrealized Losses	$ (336)	$ (53)

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Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities.

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Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities.

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

+ References

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

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-Name Accounting Standards Codification

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