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Borrowings (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Schedule of Federal Home Loan Bank Advances [Line Items] |  |
Other unused lines of credit | $ 5,000 |
Gross lines of credit at year-end | 28,000 | $ 28,000
Federal Home Loan Bank Advances | 0 | $ 0
FHLB irrevocable letter of credit | 45,000 |
Federal Home Loan Bank of Atlanta [Member] |  |
Schedule of Federal Home Loan Bank Advances [Line Items] |  |
Unused line of credit total | $ 231,800 |
Available credit to total Bank assets, maximum percentage | 20.00% |

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- Definition Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22 (b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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