Premises and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total	$ 39,064	$ 38,829
Less accumulated depreciation	(22,109)	(21,789)
Net	16,955	17,040
Land
Property, Plant and Equipment [Line Items]
Total	3,536	3,536
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total	23,564	23,534
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Total	11,749	11,708
Construction in progress
Property, Plant and Equipment [Line Items]
Total	$ 215	$ 51