Premises and Equipment - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Premise and Equipment, Gross	$ 55,995	$ 56,048
Accumulated depreciation	(23,938)	(23,566)
Total premises and equipment	32,057	32,482
Land
Property, Plant and Equipment [Line Items]
Premise and Equipment, Gross	10,576	10,914
Building
Property, Plant and Equipment [Line Items]
Premise and Equipment, Gross	28,671	30,518
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Premise and Equipment, Gross	14,091	13,690
Leasehold improvements
Property, Plant and Equipment [Line Items]
Premise and Equipment, Gross	797	809
Construction in progress
Property, Plant and Equipment [Line Items]
Premise and Equipment, Gross	$ 1,860	$ 117