MSRs - Components of Servicing Income (Details) - Mortgages - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Schedule Of Components Of Servicing Income [Line Items]
Servicing income, net	$ 187,989	$ 243,265	$ 586,516	$ 676,944
Total servicing income	$ 187,989	$ 243,265	$ 586,516	$ 676,944