Premises And Equipment (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Premises And Equipment [Abstract]
Depreciation of premises and equipment	$ 2.8	$ 2.5	$ 2.8
Total rental expense	$ 3.6	$ 2.9	$ 2.4