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Investment Securities (Details 3) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Proceeds, gains and losses realized on securities sold or called      
Proceeds on securities sold $ 12,291 $ 32,733 $ 29,338
Gross realized gains 135 1,170 658
Gross realized losses $ 60 $ 582 $ 123