MSRs - Components of Servicing Income (Details) - Mortgages - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Schedule Of Components Of Servicing Income [Line Items]
Servicing income, net	$ 252,738	$ 223,678
Income from MSRs, net	$ 252,738	$ 223,678