Note 4 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Debt securities, fair value, total	$ 78,864,062	$ 74,509,520
Other invested assets	2,803,831	2,239,683
Limited partnership interests	415,721	389,827
Fair Value, Recurring [Member]
Debt securities, fair value, total	78,864,062	74,509,520
Equity securities, fair value	3,934,398	3,585,885
Other invested assets	2,803,831	2,239,683
Reinsurance contract allocated hedge	151,249	673,681
Limited partnership interests	415,721	389,827
Investments, fair value	86,169,261	81,398,596
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt securities, fair value, total	742,712	724,668
Equity securities, fair value	2,230,271	2,017,756
Other invested assets	0	0
Reinsurance contract allocated hedge	0	0
Limited partnership interests	0	0
Investments, fair value	2,972,983	2,742,424
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt securities, fair value, total	61,035,248	56,075,332
Equity securities, fair value	1,704,127	1,568,129
Other invested assets	0	0
Reinsurance contract allocated hedge	0	0
Limited partnership interests	0	0
Investments, fair value	62,739,375	57,643,461
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt securities, fair value, total	17,086,102	17,709,520
Equity securities, fair value	0	0
Other invested assets	2,803,831	2,239,683
Reinsurance contract allocated hedge	151,249	673,681
Limited partnership interests	415,721	389,827
Investments, fair value	20,456,903	21,012,711
US Treasury Securities [Member]
Debt securities, fair value, total	742,712	724,668
US Treasury Securities [Member] \| Fair Value, Recurring [Member]
Debt securities, fair value, total	742,712	724,668
US Treasury Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt securities, fair value, total	742,712	724,668
US Treasury Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt securities, fair value, total	0	0
US Treasury Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt securities, fair value, total	0	0
Corporate Debt Securities [Member]
Debt securities, fair value, total	17,914,873	17,813,362
Corporate Debt Securities [Member] \| Fair Value, Recurring [Member]
Debt securities, fair value, total	17,914,873	17,813,362
Corporate Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt securities, fair value, total	0	0
Corporate Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt securities, fair value, total	17,745,273	17,643,762
Corporate Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt securities, fair value, total	169,600	169,600
US States and Political Subdivisions Debt Securities [Member]
Debt securities, fair value, total	4,738,839	5,636,093
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member]
Debt securities, fair value, total	4,738,839	5,636,093
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt securities, fair value, total	0	0
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt securities, fair value, total	4,738,839	5,636,093
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt securities, fair value, total	0	0
Redeemable Preferred Stock [Member]
Debt securities, fair value, total	2,449,490	3,305,569
Redeemable Preferred Stock [Member] \| Fair Value, Recurring [Member]
Debt securities, fair value, total	2,449,490	3,305,569
Redeemable Preferred Stock [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt securities, fair value, total	0	0
Redeemable Preferred Stock [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt securities, fair value, total	2,449,490	3,305,569
Redeemable Preferred Stock [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt securities, fair value, total	0	0
Term Loans [Member]
Debt securities, fair value, total	16,582,752	17,052,420
Term Loans [Member] \| Fair Value, Recurring [Member]
Debt securities, fair value, total	16,582,752	17,052,420
Term Loans [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt securities, fair value, total	0	0
Term Loans [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt securities, fair value, total	0	0
Term Loans [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt securities, fair value, total	16,582,752	17,052,420
Collateralized Mortgage-Backed Securities [Member]
Debt securities, fair value, total	36,435,396	29,977,408
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member]
Debt securities, fair value, total	36,435,396	29,977,408
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt securities, fair value, total	0	0
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt securities, fair value, total	36,101,646	29,489,908
Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt securities, fair value, total	333,750	487,500
Common Stock [Member] \| Fair Value, Recurring [Member]
Equity securities, fair value	2,351,171	2,116,356
Common Stock [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Equity securities, fair value	2,230,271	2,017,756
Common Stock [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Equity securities, fair value	120,900	98,600
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	1,583,227	1,469,529
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	1,583,227	1,469,529
Preferred Stock [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Equity securities, fair value	$ 0	$ 0

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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