Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) item segment	Jan. 01, 2019 USD ($)
Significant Accounting Policies [Line Items]
Property, plant and equipment, depreciation methods	Depreciation and amortization are calculated using the straight-line method over the estimated useful lives of the assets.
Number of reporting units | item		1
Number of operating segments | segment		1
Tax at federal statutory rate	21.00%	21.00%
Cash and cash equivalents in excess of FDIC insurance	$ 6,700
Advertising expense	331	$ 425
Right-of-use assets	4,795	4,771	$ 3,800
Operating lease liability	4,874	4,792	$ 3,800
Reclassification of (gains) recognized in net income	347	$ 0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	$ 88
Number Of Libor Based Loans | loan	27
Percentage Of Libor Based Loans	7.80%
Asset Value Exceeding Amount	$ 1,000,000
Land Improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	15 years
Minimum | Furniture, Fixtures and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Minimum | Computer Hardware and Data Handling Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Minimum | Building and Building Improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Maximum | Furniture, Fixtures and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Maximum | Computer Hardware and Data Handling Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Maximum | Building and Building Improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	40 years