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Securities (Details 3) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Proceeds $ 17,701 $ 6,043 $ 21,015 $ 11,639
Gains 107 390 291 1,352
Tax provision related to gains $ 36 $ 133 $ 99 $ 460