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Pending Acquisition (Details) $ / shares in Units, $ in Thousands |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 25, 2020 $ / shares | Sep. 30, 2020 USD ($) $ / shares | Dec. 31, 2019 USD ($) $ / shares
Unaudited pro forma information [Abstract] |  |  |
Net interest income | $ |  | $ 17,817 | $ 23,606
Net income | $ |  | $ 2,090 | $ 3,241
Basic earnings per share (in dollars per share) |  | $ 0.04 | $ 0.06
Diluted earnings per share (in dollars per share) |  | 0.04 | 0.06
Common Stock Voting [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Common stock, par value (in dollars per share) |  | 0.01 | 0.01
Common Stock Non-Voting [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Common stock, par value (in dollars per share) |  | $ 0.01 | $ 0.01
City First [Member] | Common Class A [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Common stock, par value (in dollars per share) | $ 0.50 |  |
City First [Member] | Common Class B [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Common stock, par value (in dollars per share) | 0.50 |  |
City First [Member] | Common Stock Voting [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  |
Share conversion ratio | 13.626 |  |
City First [Member] | Common Stock Non-Voting [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  |
City First [Member] | Series A Preferred Stock [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Share conversion ratio | 1.00 |  |
City First [Member] | Series B Preferred Stock [Member] |  |  |
Pending Acquisition [Abstract] |  |  |
Common stock, par value (in dollars per share) | $ 0.50 |  |

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