Note 4 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Investments in available-for-sale securities, at fair value	$ 65,716,665	$ 65,316,077
Other invested assets	1,985,441	1,760,777
Other invested assets	1,985,441	1,760,777
Reinsurer [Member]
Reinsurance contract allocated hedge	726,077	724,998
Reinsurance contract allocated hedge	726,077	724,998
Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	65,716,665	65,316,077
Equity securities, fair value	7,578,511	7,395,044
Other invested assets	1,985,441	1,760,777
Investments, fair value	76,006,694	75,196,896
Other invested assets	1,985,441	1,760,777
Fair Value, Recurring [Member] | Reinsurer [Member]
Reinsurance contract allocated hedge	726,077	724,998
Reinsurance contract allocated hedge	726,077	724,998
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	740,816	1,025,087
Equity securities, fair value	6,034,240	5,929,624
Other invested assets	0	0
Investments, fair value	6,775,056	6,954,711
Other invested assets	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Reinsurer [Member]
Reinsurance contract allocated hedge	0	0
Reinsurance contract allocated hedge	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	46,251,191	45,563,422
Equity securities, fair value	1,544,271	1,465,420
Other invested assets	0	0
Investments, fair value	47,795,462	47,028,842
Other invested assets	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Reinsurer [Member]
Reinsurance contract allocated hedge	0	0
Reinsurance contract allocated hedge	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	18,724,658	18,727,568
Equity securities, fair value	0	0
Other invested assets	1,985,441	1,760,777
Investments, fair value	21,436,176	21,213,343
Other invested assets	1,985,441	1,760,777
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Reinsurer [Member]
Reinsurance contract allocated hedge	726,077	724,998
Reinsurance contract allocated hedge	726,077	724,998
US Treasury Securities [Member]
Investments in available-for-sale securities, at fair value	740,816	1,025,087
US Treasury Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	740,816	1,025,087
US Treasury Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	740,816	1,025,087
US Treasury Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	0	0
US Treasury Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	0	0
Corporate Debt Securities [Member]
Investments in available-for-sale securities, at fair value	16,348,633	15,869,078
Corporate Debt Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	16,348,633	15,869,078
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	0	0
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	16,172,633	15,687,478
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	176,000	181,600
US States and Political Subdivisions Debt Securities [Member]
Investments in available-for-sale securities, at fair value	5,649,804	5,420,409
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	5,649,804	5,420,409
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	0	0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	5,649,804	5,420,409
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	0	0
Redeemable Preferred Stock [Member]
Investments in available-for-sale securities, at fair value	3,426,328	3,355,615
Redeemable Preferred Stock [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	3,426,328	3,355,615
Redeemable Preferred Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	0	0
Redeemable Preferred Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	3,426,328	3,355,615
Redeemable Preferred Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	0	0
Term Loans [Member]
Investments in available-for-sale securities, at fair value	18,154,908	18,149,718
Term Loans [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	18,154,908	18,149,718
Term Loans [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	0	0
Term Loans [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	0	0
Term Loans [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	18,154,908	18,149,718
Collateralized Mortgage-Backed Securities [Member]
Investments in available-for-sale securities, at fair value	21,396,176	21,496,170
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	21,396,176	21,496,170
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	0	0
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	21,002,426	21,099,920
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	393,750	396,250
Common Stock [Member] | Fair Value, Recurring [Member]
Equity securities, fair value	6,129,740	6,024,224
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities, fair value	6,034,240	5,929,624
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities, fair value	95,500	94,600
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities, fair value	0	0
Preferred Stock [Member] | Fair Value, Recurring [Member]
Equity securities, fair value	1,448,771	1,370,820
Preferred Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities, fair value	0	0
Preferred Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities, fair value	1,448,771	1,370,820
Preferred Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities, fair value	$ 0	$ 0