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Loans and Allowance for Loan Losses - Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
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Sep. 30, 2020 USD ($) DebtSecurityNumber | Dec. 31, 2019 USD ($) DebtSecurityNumber
Number of Loans | DebtSecurityNumber | 5 | 5
Pre- Modification Outstanding Principal Balance | $ 282 | $ 282
Post- Modification Principal Balance | $ 63 | $ 136
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] |  |
Number of Loans | DebtSecurityNumber | 1 | 1
Pre- Modification Outstanding Principal Balance | $ 107 | $ 107
Post- Modification Principal Balance |  | $ 62
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] |  |
Number of Loans | DebtSecurityNumber | 2 | 2
Pre- Modification Outstanding Principal Balance | $ 59 | $ 59
Post- Modification Principal Balance | $ 12 | $ 14
Commercial and Industrial Loans [Member] |  |
Number of Loans | DebtSecurityNumber | 2 | 2
Pre- Modification Outstanding Principal Balance | $ 116 | $ 116
Post- Modification Principal Balance | $ 51 | $ 60

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details
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- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details
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- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details
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