Note 10 - Statutory Information and Dividend Restrictions (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Statutory Capital and Surplus Applying National Association of Insurance Commissioners (NAIC) Practices	$ 62,874,928	$ 59,735,422
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval	6,300,000
Dividends To Security Holders [Member]
Dividends	0	0
Wisconsin Policyholders [Member]
Dividends, Cash	19,661	18,446
ICC [Member] \| Dividends Received [Member]
Related Party Transaction, Amounts of Transaction	$ 1,250,000	$ 3,000,000

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-SubTopic 405
-Topic 942
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481071/942-405-45-2

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Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

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Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

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Amount of dividends that can be declared or paid without approval of regulatory agency.

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Amount of statutory capital and surplus computed using statutory accounting practices prescribed by the National Association of Insurance Commissioners.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479989/944-505-50-1

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