MSRs - MSR Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance at beginning of year	$ 547,345,334	$ 635,260,420
Changes in fair value due to:
Balance at end of year	1,001,825,294	547,345,334
Mortgage servicing rights
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance at beginning of year	919,678	2,700,207
Changes in fair value due to:
Realized loss	(10,910)	0
Changes in valuation inputs or assumptions used in valuation model	109,663	(634,824)
Other changes to fair value	(466,434)	(1,145,705)
Balance at end of year	551,997	919,678
Loans associated with MSRs	$ 91,727,121	$ 191,799,159
MSR values as percent of loans (as a percent)	0.60%	0.48%