Bank Premises and Equipment, Net (Major Classes of Bank Premises and Equipment and Total Accumulated Depreciation) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	$ 34,185	$ 31,668
Less accumulated depreciation	13,221	12,653
Bank premises and equipment, net	20,964	19,015
Land [Member]
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	6,729	6,406
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	18,632	17,290
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	$ 8,824	$ 7,972