Note 2 - Investments - Mortgage Loans by Maturity Date (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
One year or less	$ 19,523,001	$ 15,354,542
After one year through five years	4,806,345	8,435,531
Total	24,329,346	23,790,073
Allowance for credit losses	(34,611)	0
Total commercial mortgages	$ 24,294,735	$ 23,790,073