Securities (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Securities [Abstract]
Carrying value of securities pledged as collateral to secure public deposits	$ 55.3	$ 57.5
Fair value of investments, carried at less than historical costs	$ 53.8	$ 42.9
Percentage available for sale Securities in unrealized loss positions out of total available for sale securities	52.00%	38.00%