Premises And Equipment (Major Categories Of Premises And Equipment And Accumulated Depreciation) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 62,481	$ 57,523
Less accumulated depreciation	24,928	23,314
Total premises and equipment, net	37,553	34,209
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	10,415	10,061
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	32,283	29,620
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 19,783	$ 17,842