Note 2 - Investments (Details Textual)	12 Months Ended
Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Proceeds from Sale, Maturity and Collection of Investments, Total	$ 9,878,340	$ 4,769,831
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	230
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 5,704,466	283,345
Other-than-temporary Impairment Loss, Debt Securities, Available-for-Sale	0	0
Debt and Equity Securities, Unrealized Gain (Loss), Total	(1,638,847)	20,814
Debt and Equity Securities, Realized Gain (Loss), Total	(108,643)	229,992
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net, Total	$ (177,596)	(108,526)
Fixed Income Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	131
Collateralized Mortgage-Backed Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	73
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 1,074,520	$ 70,259
Term Loans [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	10
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 146,395
Preferred Stock [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	16

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on 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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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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Amount of realized gain (loss) on investment in debt and equity securities.

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Amount of unrealized gain (loss) on investment in debt and equity securities.

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 15
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Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings and other comprehensive loss (OCI).

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The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.

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