Bank Premises And Equipment (Components Of Bank Premises And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Total	$ 32,821	$ 31,532
Less accumulated depreciation and amortization	(15,657)	(14,809)
Bank premises and equipment, net	17,164	16,723
Land [Member]
Property, Plant and Equipment [Line Items]
Total	2,865	2,865
Bank Premises [Member]
Property, Plant and Equipment [Line Items]
Total	13,703	13,023
Furniture, Fixtures And Equipment [Member]
Property, Plant and Equipment [Line Items]
Total	10,257	9,659
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total	$ 5,996	$ 5,985