Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Major classifications of premises and equipment [Abstract]
Premises and equipment, gross	$ 49,957	$ 49,643
Accumulated depreciation	(24,518)	(26,076)
Premises and equipment, net	25,439	23,567
Land
Major classifications of premises and equipment [Abstract]
Premises and equipment, gross	6,891	6,077
Buildings
Major classifications of premises and equipment [Abstract]
Premises and equipment, gross	25,616	23,481
Leasehold improvements
Major classifications of premises and equipment [Abstract]
Premises and equipment, gross	1,078	1,399
Furniture and equipment
Major classifications of premises and equipment [Abstract]
Premises and equipment, gross	$ 16,372	$ 18,686