Premises And Equipment (Major Categories Of Premises And Equipment And Accumulated Depreciation) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 45,216	$ 42,321
Less accumulated depreciation	21,479	20,749
Total premises and equipment, net	23,737	21,572
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	6,741	6,308
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	23,028	21,461
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 15,447	$ 14,552