Note 4 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Debt Securities Fair Value	$ 79,578,179	$ 74,509,520
Other invested assets	1,109,606	2,239,683
Limited partnership interests	428,170	389,827
US Treasury Securities [Member]
Debt Securities Fair Value	711,377	724,668
Corporate Debt Securities [Member]
Debt Securities Fair Value	21,491,820	17,813,362
US States and Political Subdivisions Debt Securities [Member]
Debt Securities Fair Value	4,741,149	5,636,093
Redeemable Preferred Stock [Member]
Debt Securities Fair Value	2,411,234	3,305,569
Term Loans [Member]
Debt Securities Fair Value	12,788,304	17,052,420
Collateralized Mortgage-Backed Securities [Member]
Debt Securities Fair Value	37,434,295	29,977,408
Fair Value, Recurring [Member]
Debt Securities Fair Value	79,578,179	74,509,520
Equity securities, fair value	3,876,085	3,585,885
Other invested assets	1,109,606	2,239,683
Reinsurance contract allocated hedge	713,114	673,681
Limited partnership interests	428,170	389,827
Investments, fair value	85,705,154	81,398,596
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities Fair Value	711,377	724,668
Equity securities, fair value	2,271,495	2,017,756
Other invested assets	0	0
Reinsurance contract allocated hedge	0	0
Limited partnership interests	0	0
Investments, fair value	2,982,872	2,742,424
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities Fair Value	65,565,148	56,075,332
Equity securities, fair value	1,604,590	1,568,129
Other invested assets	0	0
Reinsurance contract allocated hedge	0	0
Limited partnership interests	0	0
Investments, fair value	67,169,738	57,643,461
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities Fair Value	13,301,654	17,709,520
Equity securities, fair value	0	0
Other invested assets	1,109,606	2,239,683
Reinsurance contract allocated hedge	713,114	673,681
Limited partnership interests	428,170	389,827
Investments, fair value	15,552,544	21,012,711
Fair Value, Recurring [Member] \| US Treasury Securities [Member]
Debt Securities Fair Value	711,377	724,668
Fair Value, Recurring [Member] \| US Treasury Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities Fair Value	711,377	724,668
Fair Value, Recurring [Member] \| US Treasury Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| US Treasury Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Corporate Debt Securities [Member]
Debt Securities Fair Value	21,491,820	17,813,362
Fair Value, Recurring [Member] \| Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities Fair Value	21,322,220	17,643,762
Fair Value, Recurring [Member] \| Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities Fair Value	169,600	169,600
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member]
Debt Securities Fair Value	4,741,149	5,636,093
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities Fair Value	4,741,149	5,636,093
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Redeemable Preferred Stock [Member]
Debt Securities Fair Value	2,411,234	3,305,569
Fair Value, Recurring [Member] \| Redeemable Preferred Stock [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Redeemable Preferred Stock [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities Fair Value	2,411,234	3,305,569
Fair Value, Recurring [Member] \| Redeemable Preferred Stock [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Term Loans [Member]
Debt Securities Fair Value	12,788,304	17,052,420
Fair Value, Recurring [Member] \| Term Loans [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Term Loans [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Term Loans [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities Fair Value	12,788,304	17,052,420
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member]
Debt Securities Fair Value	37,434,295	29,977,408
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Securities Fair Value	0	0
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities Fair Value	37,090,545	29,489,908
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Securities Fair Value	343,750	487,500
Fair Value, Recurring [Member] \| Common Stock [Member]
Equity securities, fair value	2,395,195	2,116,356
Fair Value, Recurring [Member] \| Common Stock [Member] \| Fair Value, Inputs, Level 1 [Member]
Equity securities, fair value	2,271,495	2,017,756
Fair Value, Recurring [Member] \| Common Stock [Member] \| Fair Value, Inputs, Level 2 [Member]
Equity securities, fair value	123,700	98,600
Fair Value, Recurring [Member] \| Common Stock [Member] \| Fair Value, Inputs, Level 3 [Member]
Equity securities, fair value	0	0
Fair Value, Recurring [Member] \| Preferred Stock [Member]
Equity securities, fair value	1,480,890	1,469,529
Fair Value, Recurring [Member] \| Preferred Stock [Member] \| Fair Value, Inputs, Level 1 [Member]
Equity securities, fair value	0	0
Fair Value, Recurring [Member] \| Preferred Stock [Member] \| Fair Value, Inputs, Level 2 [Member]
Equity securities, fair value	1,480,890	1,469,529
Fair Value, Recurring [Member] \| Preferred Stock [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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