Note 4 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Investments in available-for-sale securities, at fair value	$ 74,509,520	$ 65,316,077
Other invested assets	2,239,683	1,760,777
Limited partnership interests	389,827	0
Other invested assets	2,239,683	1,760,777
Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	74,509,520	65,316,077
Equity securities, fair value	3,585,885	7,395,044
Other invested assets	2,239,683	1,760,777
Reinsurance contract allocated hedge	673,681	724,998
Limited partnership interests	389,827
Investments, fair value	81,398,596	75,196,896
Other invested assets	2,239,683	1,760,777
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments in available-for-sale securities, at fair value	724,668	1,025,087
Equity securities, fair value	2,017,756	5,929,624
Other invested assets	0	0
Reinsurance contract allocated hedge	0	0
Limited partnership interests	0
Investments, fair value	2,742,424	6,954,711
Other invested assets	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments in available-for-sale securities, at fair value	56,075,332	45,563,422
Equity securities, fair value	1,568,129	1,465,420
Other invested assets	0	0
Reinsurance contract allocated hedge	0	0
Limited partnership interests	0
Investments, fair value	57,643,461	47,028,842
Other invested assets	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments in available-for-sale securities, at fair value	17,709,520	18,727,568
Equity securities, fair value	0	0
Other invested assets	2,239,683	1,760,777
Reinsurance contract allocated hedge	673,681	724,998
Limited partnership interests	389,827
Investments, fair value	21,012,711	21,213,343
Other invested assets	2,239,683	1,760,777
US Treasury Securities [Member]
Investments in available-for-sale securities, at fair value	724,668	1,025,087
US Treasury Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	724,668	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	724,668	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	17,813,362	15,869,078
Corporate Debt Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	17,813,362	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	17,643,762	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	169,600	181,600
US States and Political Subdivisions Debt Securities [Member]
Investments in available-for-sale securities, at fair value	5,636,093	5,420,409
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	5,636,093	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	5,636,093	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	3,305,569	3,355,615
Redeemable Preferred Stock [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	3,305,569	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	3,305,569	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	17,052,420	18,149,718
Term Loans [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	17,052,420	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	17,052,420	18,149,718
Collateralized Mortgage-Backed Securities [Member]
Investments in available-for-sale securities, at fair value	29,977,408	21,496,170
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]
Investments in available-for-sale securities, at fair value	29,977,408	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	29,489,908	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	487,500	396,250
Common Stock [Member] | Fair Value, Recurring [Member]
Equity securities, fair value	2,116,356	6,024,224
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities, fair value	2,017,756	5,929,624
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities, fair value	98,600	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	1,469,529	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	1,469,529	1,370,820
Preferred Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities, fair value	$ 0	$ 0