Note 1 - Description of Business and Significant Accounting Policies - Information About Deferred Acquisition Costs (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Balance at beginning of period	$ 5,629,002	$ 6,354,875
Capitalization of commissions, sales and issue expenses	529,998	479,681
Amortization net of interest	(1,407,503)	(1,205,554)
Balance at end of period	$ 4,751,497	$ 5,629,002