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Securities Gross Realized Gain Loss (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract]        
Available-for-sale Securities, Gross Realized Gains $ 11 $ 429 $ 14 $ 467
Available-for-sale Securities, Gross Realized Losses 0 (664) 0 (664)
Available-for-sale Securities, Gross Realized Gain (Loss), Net $ 11 $ (235) $ 14 $ (197)