Premises and Equipment - Premises and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Premises and Equipment
Premises and equipment, gross	$ 19,904	$ 18,896
Accumulated depreciation and amortization	(12,131)	(11,445)
Premises and equipment, net	7,773	7,451
Building
Premises and Equipment
Premises and equipment, gross	3,279	3,256
Land
Premises and Equipment
Premises and equipment, gross	2,900	2,900
Furniture and equipment
Premises and Equipment
Premises and equipment, gross	8,468	8,082
Leasehold improvements
Premises and Equipment
Premises and equipment, gross	$ 5,257	$ 4,658