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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Loans and leases receivable, net of deferred income | $ 1,167,812,000 | $ 1,050,369,000
Loans held for sale | 3,546,000 | 1,749,000
Restricted stock impairment charge | 0 | 0
Dividend income, operating | 212,252 | 290,415
Allowance for unfunded loan commitments | $ 109,559 | $ 78,463
Property, plant and equipment, depreciation methods | straight-line method based on the estimated useful lives of the assets |
Common stock, par or stated value per share | $ 0.01 | $ 0.01
Stock repurchased during period, shares | 145,291 |
Shares repurchased weighted average price | $ 18.96 |
Trust Department [Member] |  |
Stock repurchased during period, shares | 194,124 |
Shares repurchased weighted average price | $ 13.49 |
Liberty Mews Limited Partnership [Member] |  |
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest | 99.90% |
Furniture and Equipment [Member] |  |
Property, plant and equipment, useful life | 20 years |
Maximum [Member] | Building [Member] |  |
Property, plant and equipment, useful life | 31 years 6 months |
Minimum [Member] | Building [Member] |  |
Property, plant and equipment, useful life | 10 years |
Minimum [Member] | Furniture and Equipment [Member] |  |
Property, plant and equipment, useful life | 3 years |
Western Maryland And Northeastern West Virginia [Member] | Loans Receivable [Member] |  |
Concentration risk, percentage | 10.00% |
Loans and leases receivable, net of deferred income | $ 117,000,000.0 |
Western Maryland And Northeastern West Virginia [Member] | Loans Receivable [Member] | Nonperforming Financing Receivable [Member] |  |
Loans and leases receivable, net of deferred income | 400,000 |
Western Maryland And Northeastern West Virginia [Member] | Loans Receivable [Member] | Impaired [Member] |  |
Loans and leases receivable, net of deferred income | 2,000,000.0 |
Western Maryland And Northeastern West Virginia [Member] | Loans Receivable [Member] | Performing According to Modified Terms [Member] |  |
Loans and leases receivable, net of deferred income | 1,100,000 |
Western Maryland And Northeastern West Virginia [Member] | Loans Receivable [Member] | Nonperforming Troubled Debt Restructuring [Member] |  |
Loans and leases receivable, net of deferred income | 500,000 |
Western Maryland And Northeastern West Virginia [Member] | Loans Receivable [Member] | Performing Financing Receivable [Member] |  |
Loans and leases receivable, net of deferred income | $ 115,000,000.0 |
Western Maryland And Northeastern West Virginia [Member] | Commercial Rental Properties [Member] |  |
Concentration risk, percentage | 15.00% |

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