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FHLB Advances and Other Borrowings (Schedule of Issuance of Subordinated Debentures) (Details) - USD ($) |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Oct. 16, 2006 | Jul. 15, 2005 | May 06, 2005 | Mar. 26, 2003 | Dec. 31, 2020 | Dec. 31, 2019
LIBOR |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Variable Rate |  |  |  |  | 2.25% |
ACB Trust I |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Issuance Amount |  |  | $ 5,155,000 |  |  |
Carrying Amount at December 31, 2020 |  |  |  |  | $ 3,830,000 |
Rate as of December 31 |  |  |  |  | 2.40% | 4.09%
ACB Trust I | LIBOR |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Variable Rate |  |  | 2.15% |  |  |
ACB Trust II |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Issuance Amount |  | $ 3,093,000 |  |  |  |
Carrying Amount at December 31, 2020 |  |  |  |  | $ 2,245,000 |
Rate as of December 31 |  |  |  |  | 2.06% | 3.76%
ACB Trust II | LIBOR |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Variable Rate |  | 1.85% |  |  |  |
RIVR Statutory Trust 1 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Issuance Amount |  |  |  | $ 7,217,000 |  |
Carrying Amount at December 31, 2020 |  |  |  |  | $ 5,923,000 |
Rate as of December 31 |  |  |  |  | 3.40% | 5.10%
RIVR Statutory Trust 1 | LIBOR |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Variable Rate |  |  |  | 3.15% |  |
Citizens First Statutory Trust I |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Issuance Amount | $ 5,155,000 |  |  |  |  |
Carrying Amount at December 31, 2020 |  |  |  |  | $ 4,105,000 |
Rate as of December 31 |  |  |  |  | 1.88% | 3.75%
Citizens First Statutory Trust I | LIBOR |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Variable Rate | 1.65% |  |  |  |  |

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