Note 2 - Summary of Significant Accounting Policies - Unrealized Gain (Loss) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Change in fair value	$ (4,217,368)		$ (4,159,376)
Unrealized gain on mortgage servicing rights investments	1,129,673		1,083,279
Unrealized gain on interest rate futures	2,343,518		2,968,714
Total unrealized loss on residential mortgage loans, mortgage servicing rights investments and derivatives, net	$ (744,177)	$ 0	$ (107,383)	$ 0

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.