Note 8 - Allowance for Loan Losses From Mortgage Loans on Real Estate (Details Textual) - USD ($)	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Financing Receivable, Collectively Evaluated for Impairment	$ 255,278,115	$ 206,157,105
Mortgage loans on real estate, commercial and consumer, net	257,171,436	250,899,714
One Loan Originator and Investments [Member]
Mortgage loans on real estate, commercial and consumer, net	1,893,321		$ 2,357,772
One Loan Originator and Investments [Member] \| Independent Mortgage Loan Balances [Member]
Escrow Deposit	1,012,490	890,250
Escrow Amount Available	1,003,023	879,146
Advances To Loan Originator	5,195,898	4,722,878
Residential Real Estate - Held for Sale [Member] \| Independent Mortgage Loan Balances [Member]
Escrow Amount Available	9,467	11,104
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	1,282,804	1,249,643
Mortgage loans on real estate, commercial and consumer, net		$ 2,220,809
Residential Real Estate - Held for Sale [Member] \| Independent Mortgage Loan Balances [Member] \| Related Parties [Member]
Mortgage Loans on Real Estate, Commercial and Consumer, Net, Additional Amount	495,392
Residential Real Estate - Held for Sale [Member] \| Independent Mortgage Loan Balances [Member] \| Related Parties [Member] \| Maximum [Member]
Mortgage loans on real estate, commercial and consumer, net	3,000,000
Residential [Member] \| Independent Mortgage Loan Balances [Member] \| Related Party [Member]
Mortgage loans on real estate, commercial and consumer, net	$ 2,504,608

The amount of advances sent to a loan originator.

No definition available.

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- Definition

The amount of funds available in escrow for certain terms.

+ References

No definition available.

+ Details

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- Definition

The additional amount of mortgage loans on net commercial and consumer real estate.

+ References

No definition available.

+ Details

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
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-Topic 942
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-Publisher FASB
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Period Type:	instant

- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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- Definition

Amount of financing receivable collectively evaluated for credit loss. Excludes financing receivable individually evaluated for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.5.a)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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-Section 50
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-Publisher FASB
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- Definition

The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 80
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