Premises and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment
Property, plant and equipment, gross	$ 35,282,000	$ 32,181,000
Less accumulated depreciation and amortization	(13,043,000)	(11,357,000)
Payments for Construction in Process	227,000	507,000
Property, plant and equipment, net	22,466,000	21,331,000
Depreciation of premises and equipment	1,840,000	1,630,000
Land
Property, Plant and Equipment
Property, plant and equipment, gross	2,226,000	2,226,000
Buildings and improvements
Property, Plant and Equipment
Property, plant and equipment, gross	20,213,000	19,566,000
Leasehold Improvements [Member]
Property, Plant and Equipment
Property, plant and equipment, gross	4,040,000	3,076,000
Furniture, fixtures and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	5,506,000	4,971,000
Computer Equipment [Member]
Property, Plant and Equipment
Property, plant and equipment, gross	$ 3,297,000	$ 2,342,000