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Consolidated Statements of Comprehensive Income (Loss) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 21,323,333	$ 54,011,696	$ 65,562,166
Reclassification of gain on sale of mortgage revenue bond to net income	(2,220,254)
Unrealized gains (losses) on securities	(27,262,557)	15,757,801	(69,426,546)
Unrealized gains (losses) on bond purchase commitments	(197,788)	98,859	(865,475)
Comprehensive income (loss)	$ (8,357,266)	$ 69,868,356	$ (4,729,855)

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Reclassification of gain on sale of mortgage revenue bond to net income.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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