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Investment Securities (Details 1) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011
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Information concerning investments with unrealized losses |  |
Investment securities available for sale, Less than 12 months, Fair Value | $ 17,258 | $ 3,774
Investment securities available for sale, Less than 12 months, Unrealized Losses | (69) | (35)
Investment securities available for sale, 12 months or longer, Fair Value | 469 |
Investment securities available for sale, 12 months or longer, Unrealized Losses | 5 |
Investment securities available for sale, Total, Fair Value | 17,727 | 3,774
Investment securities available for sale, Gross Unrealized Losses | (74) | (35)
Investment securities held to maturity, Less than 12 months, Fair Value | 2,924 | 1,991
Investment securities held to maturity, Less than 12 months, Unrealized Losses | (76) | (9)
Investment securities held to maturity, 12 months or longer, Fair Value |  |
Investment securities held to maturity, 12 months or longer, Unrealized Losses |  |
Investment securities held to maturity, Total Fair Value | 2,924 | 1,991
Investment securities held to maturity, Total Unrealized Losses | (76) | (9)
U.S. Agency [Member] |  |
Information concerning investments with unrealized losses |  |
Investment securities available for sale, Less than 12 months, Fair Value | 1,248 | 3,161
Investment securities available for sale, Less than 12 months, Unrealized Losses | (1) | (28)
Investment securities available for sale, 12 months or longer, Fair Value |  |
Investment securities available for sale, 12 months or longer, Unrealized Losses |  |
Investment securities available for sale, Total, Fair Value | 1,248 | 3,161
Investment securities available for sale, Gross Unrealized Losses | (1) | (28)
U.S. Agency mortgage-backed securities [Member] |  |
Information concerning investments with unrealized losses |  |
Investment securities available for sale, Less than 12 months, Fair Value | 10,066 | 613
Investment securities available for sale, Less than 12 months, Unrealized Losses | (21) | (7)
Investment securities available for sale, 12 months or longer, Fair Value | 469 |
Investment securities available for sale, 12 months or longer, Unrealized Losses | 5 |
Investment securities available for sale, Total, Fair Value | 10,535 | 613
Investment securities available for sale, Gross Unrealized Losses | (26) | (7)
Corporate bonds [Member] |  |
Information concerning investments with unrealized losses |  |
Investment securities available for sale, Less than 12 months, Fair Value | 5,944 |
Investment securities available for sale, Less than 12 months, Unrealized Losses | (47) |
Investment securities available for sale, 12 months or longer, Fair Value |  |
Investment securities available for sale, 12 months or longer, Unrealized Losses |  |
Investment securities available for sale, Total, Fair Value | 5,944 |
Investment securities available for sale, Gross Unrealized Losses | (47) |
Other Securities [Member] |  |
Information concerning investments with unrealized losses |  |
Investment securities held to maturity, Less than 12 months, Fair Value | 2,924 | 1,991
Investment securities held to maturity, Less than 12 months, Unrealized Losses | (76) | (9)
Investment securities held to maturity, 12 months or longer, Fair Value |  |
Investment securities held to maturity, 12 months or longer, Unrealized Losses |  |
Investment securities held to maturity, Total Fair Value | 2,924 | 1,991
Investment securities held to maturity, Total Unrealized Losses | $ (76) | $ (9)

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