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