Note 10 - Statutory Information and Divided Restrictions (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Statutory Capital and Surplus Applying National Association of Insurance Commissioners (NAIC) Practices	$ 59,735,420	$ 62,511,840
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval	6,000,000.0
Dividends To Security Holders [Member]
Dividends, Total	0	0
Wisconsin Policyholders [Member]
Dividends, Cash, Total	18,446	5,563
ICC [Member] \| Dividends Received [Member]
Related Party Transaction, Amounts of Transaction	$ 3,000,000	$ 800,000

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

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-SubTopic 10
-Section S99
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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.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
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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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