MSRs - Components of Servicing Income (Details) - Mortgages - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Schedule Of Components Of Servicing Income [Line Items]
Servicing income, net	$ 192,519	$ 243,875	$ 445,257	$ 467,553
Income from MSRs, net	$ 192,519	$ 243,875	$ 445,257	$ 467,553