Bank Premises and Equipment (Premises and Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total cost	$ 40,117	$ 38,030
Less accumulated depreciation	(15,231)	(13,093)
Total bank premises and equipment	24,886	24,937
Land [Member]
Property, Plant and Equipment [Line Items]
Total cost	4,333	3,911
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total cost	19,863	18,141
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total cost	13,890	12,491
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total cost	1,680	1,486
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 351	$ 2,001