Disclosures about Fair Value of Assets and Liabilities - Summary Of Estimated Fair Values Of Financial Instruments Not Carried At Fair Value On Consolidated Balance Sheets (Details) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 35,909,448	$ 50,378,538
Accrued interest receivable	793,171	751,961
Deposits	148,135,554	152,221,974
Accrued interest payable	154,527	153,018
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
FHLB Stock	1,575,000	1,575,000
Bank owned life insurance	2,326,500	2,308,325
Deposits	43,939,880	44,317,000
Advances from the FHLB	35,011,000	35,008,000
Advances by borrowers for taxes and insurance	652,184	399,702
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for sale	162,362
Loans, net	126,769,000	108,908,000
Mortgage servicing rights, net	582,000	582,000
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	35,909,448	50,378,538
Loans held for sale	160,000
Loans, net	128,013,854	117,816,517
FHLB Stock	1,575,000	1,575,000
Mortgage servicing rights, net	324,044	326,764
Bank owned life insurance	2,326,500	2,308,325
Accrued interest receivable	793,171	751,961
Deposits	192,096,792	196,505,483
Advances from the FHLB	35,000,000	35,000,000
Advances by borrowers for taxes and insurance	652,184	399,702
Accrued interest payable	154,527	153,018
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	35,909,448	50,378,538
Loans held for sale	162,362
Loans, net	126,769,000	108,908,000
FHLB Stock	1,575,000	1,575,000
Mortgage servicing rights, net	582,000	582,000
Bank owned life insurance	2,326,500	2,308,325
Accrued interest receivable	793,171	751,961
Deposits	192,075,434	196,538,974
Advances from the FHLB	35,011,000	35,008,000
Advances by borrowers for taxes and insurance	652,184	399,702
Accrued interest payable	$ 154,527	$ 153,018

Accrued interest payable fair value disclosure.

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- Definition

Accrued interest receivable fair value disclosure.

+ References

No definition available.

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Advances by borrowers for taxes and insurance, fair value disclosure.

+ References

No definition available.

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Mortgage servicing rights, net, fair value disclosure

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No definition available.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

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Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

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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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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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