Summary of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
Dec. 31, 2023 USD ($) segment country $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	$ 1,406,667,000	$ 1,279,494,000
Loans held for sale	443,000	0
Dividend income, operating	$ 198,457	$ 36,558
Weighted average useful life	3 years 4 months 17 days	4 years 4 months 17 days
Common stock, par or stated value per share \| $ / shares	$ 0.01	$ 0.01
Number of operating segments \| segment	2
Stock repurchased during period, shares \| shares	82,098	0
Shares Repurchased Weighted Average Price Per Share \| $ / shares	$ 16.79
Threshold commitment amount	$ 100,000
Wealth Book Business [Member]
Other intangible assets	$ 600,000
Weighted average useful life	3 years	4 years
Mortgage Company [Member]
Other intangible assets	$ 500,000
Weighted average useful life	3 years 11 months 1 day	4 years 11 months 1 day
Other Intangible Assets [Member]
Weighted average useful life	5 years
Liberty Mews Limited Partnership [Member]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	99.90%
MCC FUBT Fund LLC [Member]
Percentage of non voting membership interest	99.90%
Furniture and Equipment [Member]
Property, plant and equipment, useful life	20 years
Maximum [Member] \| Building [Member]
Property, plant and equipment, useful life	31 years 6 months
Minimum [Member] \| Building [Member]
Property, plant and equipment, useful life	10 years
Minimum [Member] \| Furniture and Equipment [Member]
Property, plant and equipment, useful life	3 years
Western Maryland And Northeastern West Virginia [Member] \| Loans Receivable [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	$ 77,100,000
Western Maryland And Northeastern West Virginia [Member] \| Loans Receivable [Member] \| Impaired [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	100,000
Western Maryland And Northeastern West Virginia [Member] \| Loans Receivable [Member] \| Performing Financing Receivable [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	$ 77,000,000.0
Western Maryland And Northeastern West Virginia [Member] \| Loans Receivable [Member] \| Geographic Concentration Risk [Member]
Concentration risk, percentage	5.00%
Western Maryland And Northeastern West Virginia [Member] \| Commercial Rental Properties [Member] \| Geographic Concentration Risk [Member]
Concentration risk, percentage	21.00%
MARYLAND [Member]
Number of countries in which entity operates \| country	4
WEST VIRGINIA [Member]
Number of countries in which entity operates \| country	4

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Per share or per unit amount of shares repurchased.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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The number of countries in which the entity operates as of balance sheet date.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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