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Summary of Significant Accounting Policies (Narrative) (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 USD ($) segment | Dec. 31, 2022 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2021 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |
AFS and HTM, accrued interest | $ 2,200,000 |  |  |
Held-to-maturity, allowance | 94,000 | $ 0 | $ 126,000 |
Accrued interest | $ 16,800,000 | $ 7,200,000 |  |
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Accrued interest receivable | Accrued interest receivable |  |
Transfer of loans | $ 0 | $ 7,791,000 |  |
Liabilities: Reserve for Unfunded Commitments | $ 436,000 | 316,000 |  |
Number of operating segments | segment | 1 |  |  |
Impairment charges | $ 0 | 0 |  |
Cash and cash equivalents excess of FDIC amount | 8,700,000 | 1,800,000 |  |
Advertising expenses | 1,100,000 | 900,000 |  |
Reclassification of (gains) recognized in net income | 0 | 0 |  |
Equity, Attributable to Parent | (511,135,000) | (364,285,000) |  | $ (350,693,000)
Retained Earnings |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Equity, Attributable to Parent | $ (162,290,000) | (171,613,000) |  | $ (149,966,000)
Impact of ASC326 Adoption |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Liabilities: Reserve for Unfunded Commitments |  | 265,000 |  |
Equity, Attributable to Parent |  | 7,818,000 |  |
Impact of ASC326 Adoption | Retained Earnings |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Equity, Attributable to Parent |  | $ 7,818,000 |  |
Land improvements |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property plant and equipment useful life | 15 years |  |  |
Minimum | Core Deposits Intangible |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Finite-Lived intangible asset, useful life | 7 years |  |  |
Minimum | Furniture and equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property plant and equipment useful life | 3 years |  |  |
Minimum | Computer hardware and data handling equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property plant and equipment useful life | 3 years |  |  |
Minimum | Buildings and building improvements |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property plant and equipment useful life | 10 years |  |  |
Maximum | Core Deposits Intangible |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Finite-Lived intangible asset, useful life | 10 years |  |  |
Maximum | Furniture and equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property plant and equipment useful life | 10 years |  |  |
Maximum | Computer hardware and data handling equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property plant and equipment useful life | 5 years |  |  |
Maximum | Buildings and building improvements |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property plant and equipment useful life | 40 years |  |  |

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