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Loans Receivable and Allowance for Loan Losses (Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating) (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | $ 396,998 | $ 399,199
Total Summarized by Aggregate Risk Rating [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 593,730 | 525,477
Pass [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 579,807 | 509,804
Special Mention [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 10,686 | 12,516
Substandard [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 3,237 | 3,157
Doubtful Or Loss [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount |  | 0
Performing [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 396,242 | 398,553
Nonperforming [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 756 | 646
Commercial Real Estate Loans [Member] | Total Summarized by Aggregate Risk Rating [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 398,813 | 391,327
Commercial Real Estate Loans [Member] | Pass [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 385,332 | 376,109
Commercial Real Estate Loans [Member] | Special Mention [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 10,413 | 12,268
Commercial Real Estate Loans [Member] | Substandard [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 3,068 | 2,950
Commercial Real Estate Loans [Member] | Doubtful Or Loss [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount |  | 0
Commercial [Member] | Total Summarized by Aggregate Risk Rating [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 194,917 | 134,150
Commercial [Member] | Pass [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 194,475 | 133,695
Commercial [Member] | Special Mention [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 273 | 248
Commercial [Member] | Substandard [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 169 | 207
Commercial [Member] | Doubtful Or Loss [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount |  | 0
Residential Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 226,120 | 229,781
Residential Real Estate Loans [Member] | Performing [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 225,655 | 229,214
Residential Real Estate Loans [Member] | Nonperforming [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 465 | 567
Construction Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 15,182 | 17,732
Construction Real Estate Loans [Member] | Performing [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 15,182 | 17,732
Consumer Loans To Individuals [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 155,696 | 151,686
Consumer Loans To Individuals [Member] | Performing [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | 155,405 | 151,607
Consumer Loans To Individuals [Member] | Nonperforming [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Carrying Amount | $ 291 | $ 79

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