Note 2 - Investments (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Proceeds from Sale, Maturity and Collection of Investments	$ 4,030,195	$ 1,128,044	$ 5,766,313	$ 4,170,514
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	235		235		230
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 5,321,918		$ 5,321,918		$ 5,704,466
Mortgage Loans, Non-accrued Status	0		0		0
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Principal Amount of Delinquent Loans	0		0		$ 0
Debt and Equity Securities, Unrealized Gain (Loss)	110,318	(1,013,834)	356,444	(1,463,629)
Debt and Equity Securities, Realized Gain (Loss)	(161,431)	1,264	36,879	623
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net	$ 594,487	$ (409,083)	$ 497,153	$ (691,301)
Fixed Income Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	133		133		131
Collateralized Mortgage-Backed Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	75		75		73
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 1,178,450		$ 1,178,450		$ 1,074,520
Term Loans [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	11		11		10
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 157,149		$ 157,149		$ 146,395
Preferred Stock [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	16		16		16