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Loans, Allowance For Loan Losses And OREO (Narrative) (Details) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2020 USD ($) contract loan item | Mar. 31, 2019 contract | Dec. 31, 2019 USD ($) contract item | May 15, 2020 USD ($) loan | Dec. 31, 2018 USD ($)
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Loan modifications that would have been classified as TDRs | contract | 0 | 0 |  |  |
Loan modifications classified as TDRs | contract | 0 | 0 |  |  |
Outstanding commitments to disburse additional funds on TDR's | contract | 0 |  | 0 |  |
Other real estate owned | $ 1,761,000 |  | $ 2,339,000 |  | $ 2,430,000
Number of loans modified | loan | 69 |  |  |  |
Residential Real Estate [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of real estate properties held | item | 1 |  | 4 |  |
Other real estate owned | $ 18,000 |  | $ 325,000 |  |
Covid-19 [Member] | Loan Portfolio [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Percent of Total Loan Portfolio | 14.27% |  |  |  |
Percentage of deferral loans with 3 month deferrals | 34.15% |  |  |  |
Covid-19 [Member] | Loan Portfolio [Member] | Commercial Loan [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Principale Balance | $ 79,760,000 |  |  |  |
Number of loans | loan | 142 |  |  |  |
Percent of Total Loan Portfolio | 13.84% |  |  |  |
Covid-19 [Member] | Loan Portfolio [Member] | Retail Loan [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Principale Balance | $ 2,429,000 |  |  |  |
Number of loans | loan | 17 |  |  |  |
Percent of Total Loan Portfolio | 0.42% |  |  |  |
Covid-19 [Member] | Loan Portfolio [Member] | Subsequent Event [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Principale Balance |  |  |  | $ 82,189,000 |
Number of loans | loan |  |  |  | 159 |

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