Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total Cost	$ 77,532	$ 73,629
Accumulated Depreciation and Amortization	(39,911)	(38,171)
Net Owned Premises and Equipment	37,621	35,458
Leased Assets	4,991	5,171
Net Premises and Equipment	42,612	40,629
Land and Bank Premises
Property, Plant and Equipment [Line Items]
Total Cost	39,624	39,342
Equipment, Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Total Cost	33,276	30,529
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total Cost	$ 4,632	$ 3,758