Bank Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	$ 24,800	$ 23,322
Less accumulated depreciation and amortization	(16,572)	(15,704)
Bank premises and equipment, net	8,228	7,618
Depreciation and amortization	881	1,742	$ 1,703
Land
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	1,131	1,131
Buildings and improvements
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	6,948	6,948
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	12,473	11,045
Leasehold improvements
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	$ 4,248	$ 4,198

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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