Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Tangible Asset Impairment Charges, Total	$ 0	$ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Reinsurance Recoverable, Allowance for Credit Loss, Ending Balance	$ 0
Catastrophe Reinsurance Treaty [Member]
Reinsurance Protection, Amount	14,000,000	14,000,000
Reinsurance Protection, Excess Rentention	$ 1,000,000	1,000,000
Accounting Standards Update 2016-13 [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Accounting Standard Effect of Adoption, Percentage	0.10%
Available-for-Sale Securities [Member]
Other Comprehensive Income (Loss), Tax, Total	$ (3,126,487)	$ (691,157)
Building [Member]
Property, Plant and Equipment, Useful Life (Year)	39 years
Computer Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years
Building Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)	15 years
Premiums [Member] \| Geographic Concentration Risk [Member] \| ILLINOIS
Concentration Risk, Percentage	22.60%	24.00%

Information on the impact of the adoption of an accounting standard as a percentage.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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