Premises And Equipment (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 1,887,000	$ 1,224,000	$ 1,076,000
Capitalized Interest	$ 0	$ 0	$ 0
Building [Member]
Property, Plant and Equipment [Line Items]
Useful life	30 years
Furniture and equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Furniture and equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	10 years