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FHLB Advances and Other Borrowings (Schedule of Issuance of Subordinated Debentures) (Details) - USD ($) |  |  |  |  |  |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 16, 2006 | Aug. 17, 2005 | Jul. 15, 2005 | May 06, 2005 | Oct. 21, 2004 | Mar. 26, 2003 | Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022
SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  |  |  |  |  |  | 0.26161% | 2.10% |
ACB Trust I |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Issuance Amount |  |  |  | $ 5,155,000 |  |  |  |  |
Carrying Amount at December 31, 2023 |  |  |  |  |  |  | $ 4,105,000 | $ 4,105,000 |
Rate as of December 31 |  |  |  |  |  |  |  | 7.81% | 6.90%
ACB Trust I | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  |  |  | 2.15% |  |  |  |  |
ACB Trust II |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Issuance Amount |  |  | $ 3,093,000 |  |  |  |  |  |
Carrying Amount at December 31, 2023 |  |  |  |  |  |  | 2,420,000 | $ 2,420,000 |
Rate as of December 31 |  |  |  |  |  |  |  | 7.49% | 6.54%
ACB Trust II | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  |  | 1.85% |  |  |  |  |  |
RIVR Statutory Trust I |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Issuance Amount |  |  |  |  |  | $ 7,217,000 |  |  |
Carrying Amount at December 31, 2023 |  |  |  |  |  |  | 6,240,000 | $ 6,240,000 |
Rate as of December 31 |  |  |  |  |  |  |  | 8.77% | 7.87%
RIVR Statutory Trust I | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  |  |  |  |  | 3.15% |  |  |
Citizens First Statutory Trust I |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Issuance Amount | $ 5,155,000 |  |  |  |  |  |  |  |
Carrying Amount at December 31, 2023 |  |  |  |  |  |  | 4,302,000 | $ 4,302,000 |
Rate as of December 31 |  |  |  |  |  |  |  | 7.31% | 5.39%
Citizens First Statutory Trust I | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) | 1.65% |  |  |  |  |  |  |  |
CUB Capital Trust I |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Issuance Amount |  |  |  |  | $ 10,310,000 |  |  |  |
Carrying Amount at December 31, 2023 |  |  |  |  |  |  | 9,642,000 | $ 9,642,000 |
Rate as of December 31 |  |  |  |  |  |  |  | 7.64% | 6.69%
CUB Capital Trust I | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  |  |  |  | 2.00% |  |  |  |
CUB Capital Trust II |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Issuance Amount |  | $ 10,310,000 |  |  |  |  |  |  |
Carrying Amount at December 31, 2023 |  |  |  |  |  |  | $ 9,073,000 | $ 9,073,000 |
Rate as of December 31 |  |  |  |  |  |  |  | 7.16% | 5.58%
CUB Capital Trust II | SOFR |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  | 1.50% |  |  |  |  |  |  |

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