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Investment Securities (Details 3) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]      
Sales proceeds $ 30,610 $ 8,265 $ 6,348
Realized gains 230 125 0
Realized losses (349) (26) 0
Net realized (losses) gains $ (119) $ 99 $ 0