Note 2 - Investments (Details Textual)	3 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Proceeds from Sale, Maturity and Collection of Investments	$ 1,736,118	$ 3,042,470
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	230		230
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 4,936,793		$ 5,704,466
Mortgage Loans, Non-accrued Status	0
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Principal Amount of Delinquent Loans	0
Debt and Equity Securities, Unrealized Gain (Loss)	246,126	(449,795)
Debt and Equity Securities, Realized Gain (Loss)	198,310	(641)
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net	$ (97,334)	$ (282,217)
Fixed Income Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	135		131
Collateralized Mortgage-Backed Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	70		73
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 1,072,670		$ 1,074,520
Term Loans [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	10		10
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	$ 150,865		$ 146,395
Preferred Stock [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	15		16