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Securities Gross Realized Gain Loss (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract]        
Available-for-sale Securities, Gross Realized Gains $ 148 $ 11 $ 148 $ 14
Available-for-sale Securities, Gross Realized Losses 0 0 0 0
Available-for-sale Securities, Gross Realized Gain (Loss), Net $ 148 $ 11 $ 148 $ 14