Note 2 - Investments - Schedule of Investment Gains (Losses) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Recognized gains on sale of investments	$ (18,542)	$ (56,133)
Realized loss on charge offs of investments	0	(420,013)
Change in allowance for credit loss recognized in earnings	(88,501)	(432,975)
Unrealized net gains recognized in earnings	(45,610)	(21,790)
Embedded derivative	40,846	(118,762)
Net investment losses	$ (111,807)	$ (1,049,673)