Premises And Equipment (Premises And Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Total cost	$ 39,092	$ 38,654
Less: Accumulated depreciation	(25,034)	(23,895)
Net premises and equipment	14,058	14,759
Land [Member]
Property, Plant and Equipment [Line Items]
Total cost	3,000	3,000
Building and leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Total cost	24,190	23,985
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 11,902	$ 11,669
Maximum [Member] | Building and leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	30 years
Maximum [Member] | Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	10 years
Minimum [Member] | Building and leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	15 years
Minimum [Member] | Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	3 years