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Loans and Allowance for Loan Losses - Impaired Loans (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Impaired loans with no related allowance recorded, carrying amount | $ 1,493 | $ 708
Impaired loans with no related allowance recorded, unpaid principal balance | 1,493 | 708
Impaired loans, related allowances | 418 | 166
Impaired loans with no related allowance recorded, carrying amount | 4,079 | 831
Impaired loans with no related allowance recorded, unpaid principal balance | 4,079 | 831
Impaired loans, carrying amount | 5,572 | 1,539
Impaired loans, unpaid principal balance | 5,572 | 1,539
Impaired loans, average recorded investment | 2,876 | 1,460
Impaired loans, interest income recognized | 71 | 65
Impaired loans, interest income received | 64 | 67
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] |  |
Impaired loans with no related allowance recorded, carrying amount |  | 73
Impaired loans with no related allowance recorded, unpaid principal balance |  | 73
Impaired loans, related allowances |  | 28
Impaired loans with no related allowance recorded, carrying amount |  | 153
Impaired loans with no related allowance recorded, unpaid principal balance |  | 153
Impaired loans, carrying amount |  | 226
Impaired loans, unpaid principal balance |  | 226
Impaired loans, average recorded investment | 181 | 70
Impaired loans, interest income recognized |  | 8
Impaired loans, interest income received |  | 8
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] |  |
Impaired loans with no related allowance recorded, carrying amount | 997 | 635
Impaired loans with no related allowance recorded, unpaid principal balance | 997 | 635
Impaired loans, related allowances | 15 | 50
Impaired loans with no related allowance recorded, carrying amount | 22 | 57
Impaired loans with no related allowance recorded, unpaid principal balance | 22 | 57
Impaired loans, carrying amount | 1,019 | 692
Impaired loans, unpaid principal balance | 1,019 | 692
Impaired loans, average recorded investment | 1,021 | 794
Impaired loans, interest income recognized | 43 | 16
Impaired loans, interest income received | 37 | 16
Real Estate [Member] | Secured By Non-farm Non residential Properties [Member] |  |
Impaired loans with no related allowance recorded, carrying amount | 496 |
Impaired loans with no related allowance recorded, unpaid principal balance | 496 |
Impaired loans, related allowances |  | 1
Impaired loans with no related allowance recorded, carrying amount |  | 511
Impaired loans with no related allowance recorded, unpaid principal balance |  | 511
Impaired loans, carrying amount | 496 | 511
Impaired loans, unpaid principal balance | 496 | 511
Impaired loans, average recorded investment | 645 | 523
Impaired loans, interest income recognized | 22 | 34
Impaired loans, interest income received | 21 | 35
Real Estate [Member] | Other Real Estate Loans [Member] |  |
Impaired loans, average recorded investment |  | 1
Commercial and Industrial Loans [Member] |  |
Impaired loans, related allowances | 394 | 67
Impaired loans with no related allowance recorded, carrying amount | 4,025 | 67
Impaired loans with no related allowance recorded, unpaid principal balance | 4,025 | 67
Impaired loans, carrying amount | 4,025 | 67
Impaired loans, unpaid principal balance | 4,025 | 67
Impaired loans, average recorded investment | 991 | 57
Impaired loans, interest income recognized | 5 | 4
Impaired loans, interest income received | 5 | 5
Consumer Portfolio Segment [Member] |  |
Impaired loans, related allowances | 9 | 20
Impaired loans with no related allowance recorded, carrying amount | 32 | 43
Impaired loans with no related allowance recorded, unpaid principal balance | 32 | 43
Impaired loans, carrying amount | 32 | 43
Impaired loans, unpaid principal balance | 32 | 43
Impaired loans, average recorded investment | 38 | 15
Impaired loans, interest income recognized | 1 | 3
Impaired loans, interest income received | $ 1 | $ 3

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