Note 2 - Investments - Summary of Proceeds from Investments and Related Gross Realized Gains and Losses (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Fixed Income Securities [Member]
Proceeds	$ 4,765,939	$ 4,512,342	$ 9,060,460	$ 8,342,783
Gains	7,345	0	8,512	0
Losses	(30,092)	(11,378)	(30,092)	(51,898)
Fixed maturity securities, net realized gains (losses)	(22,747)	(11,378)	(21,580)	(51,898)
Common Stock [Member]
Proceed	118,963	1,246,265	824,406	2,024,336
Gain	33,469	278,790	283,106	404,791
Loss	(13,377)	(121,760)	(83,434)	(307,218)
Equity securities, net realized gains (losses)	20,092	157,030	199,672	97,573
Preferred Stock [Member]
Proceed	124,375	241,812	369,888	337,440
Gain	0	4,959	1,409	29,371
Loss	(365)	(6,599)	(31,835)	(6,599)
Equity securities, net realized gains (losses)	$ (365)	$ (1,640)	$ (30,426)	$ 22,772

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-9

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Subparagraph (a)
-Publisher FASB
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479536/321-10-50-4

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(d)(1))
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Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481830/320-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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