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Income Taxes - Schedule of Effective Income Tax Rate (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |
Income tax expense at federal statutory rate |  |  |  |  |  |  |  |  | $ 1,220 | $ 712
Increase (decrease) resulting from: |  |  |  |  |  |  |  |  |  |
Tax-exempt interest |  |  |  |  |  |  |  |  | (95) | (119)
Bank-owned life insurance |  |  |  |  |  |  |  |  | (65) | (66)
State income tax expense, net of federal income taxes |  |  |  |  |  |  |  |  | 229 | 137
Other |  |  |  |  |  |  |  |  | (43) | 237
Total | $ 381 | $ 214 | $ 300 | $ 351 | $ 470 | $ 269 | $ 81 | $ 81 | $ 1,246 | $ 901

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