Credit Arrangements (Details) - USD ($)	3 Months Ended
Mar. 31, 2025	Dec. 31, 2024
Line of Credit Facility [Abstract]
Pledged bonds	$ 14,089,905	$ 12,867,175
Asset Pledged as Collateral [Member]
Line of Credit Facility [Abstract]
Pledged bonds	$ 21,588,771
Cash Management Advance [Member] \| Variable Rate [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Period of interest under CMA	90 days
Cash Management Advance [Member] \| Fixed Rate [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Period of interest under CMA	30 days
Cash Management Advance [Member] \| UG [Member]
Line of Credit Facility [Abstract]
Issue Date	Oct. 21, 2021
Maturity Date	Oct. 03, 2025
Revolving Credit Limit	$ 25,000,000
Outstanding Balance	0	$ 0
Borrowings	0
Repayments	$ 0

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Period Type:	instant

- References

No definition available.

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- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

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- Definition

Date the credit facility first became available, in YYYY-MM-DD format.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

Period of interest allowed under Cash Management Advance Application ("CMA"), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days..

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