Note 1 - Description of Business and Significant Accounting Policies - Information About Deferred Acquisition Costs (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Balance at beginning of period	$ 4,751,497	$ 5,629,002
Capitalization of commissions, sales and issue expenses	597,659	529,998
Amortization net of interest	(1,440,520)	(1,407,503)
Balance at end of period	$ 3,908,636	$ 4,751,497