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Loans and Allowance for Loan Losses - Additional Information (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 USD ($) Contract | Dec. 31, 2018 USD ($) Contract | Aug. 31, 2018 USD ($)
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Loans Pledged as Collateral | $ 34,600 | $ 27,000 |
Loans and Leases Receivable, Related Parties, Ending Balance | 900 | 800 |
Loans and Leases Receivable, Related Parties, Additions | 100 | 500 |
Loans and Leases Receivable, Related Parties, Proceeds | 22 | 200 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance, Total |  |  | $ 2,900
Purchased credit impaired loans |  |  | $ 2,831
Certain Loans Acquired in Transfer, Accretable Yield | 0 | 0 |
Loans | 556,053 | 525,870 |
Non-accruing loans | 3,723 | 2,759 |
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest | 3,700 | 2,800 |
Financing Receivable, Troubled Debt Restructuring | 100 | 200 |
Impaired loans with no related allowance recorded, carrying amount | 2,861 | 708 |
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans | 41 | 44 |
Interest Income Recorded | 147 | 27 |
Financing Receivable, Restructuring Recorded Investment With Nonaccrual Status | 16 | 65 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition | $ 0 | $ 0 |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | Contract | 0 | 0 |
Loans, allowance for loan losses | $ 5,762 | $ 5,055 |
Restructured Loan Modified through Extended Maturity and Payment Schedule Modification [Member] |  |  |
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Financing Receivable, Restructuring Recorded Investment With Nonaccrual Status | 500 |  |
Loans, allowance for loan losses | 1 | 2 |
Minimum [Member] |  |  |
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Loans Modified in a Troubled Debt Restructuring, Individually Evaluated for Impairment, Principal Balance, Threshold | 500 |  |
Minimum [Member] | ALC [Member] |  |  |
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest |  | 50 |
Financial Asset Acquired With Credit Deterioration [Member] |  |  |
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Non-accruing loans | 200 | 500 |
Impaired loans with no related allowance recorded, carrying amount | 200 | 500 |
Financial Asset Acquired With Credit Deterioration [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Loans | 200 | 300 |
Financial Asset Acquired With Credit Deterioration [Member] | Substandard [Member] |  |  |
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Loans | $ 200 | $ 500 |
Real Estate [Member] |  |  |
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items] |  |  |
Percentage of Loan Portfolio | 62.80% | 63.20% |

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