MSRs (Details) - USD ($)		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015
Schedule Of Mortgage Service Rights Activity [Line Items]
Balance at beginning of year		$ 10,650,566
MSRs related to deconsolidation of securitization trust		3,215
Changes in fair value due to:
Balance at end of period		2,850,000	[1]	$ 10,650,566
Mortgage Servicing Rights [Member]
Schedule Of Mortgage Service Rights Activity [Line Items]
Balance at beginning of year		4,268,673		0
MSRs retained from sales to securitizations		0		4,940,630
MSRs related to deconsolidation of securitization trust		364,163		0
Changes in fair value due to:
Changes in valuation inputs or assumptions used in valuation model		(102,855)		(217,663)
Other changes to fair value	[2]	(1,089,172)		(454,294)
Balance at end of period		3,440,809		4,268,673
Loans associated with MSRs	[3]	$ 397,925,409		$ 472,886,810
MSR values as percent of loans	[4]	0.86%		0.90%

[1] No loans subject to delinquent principal or interest

[2] Amounts represent changes due to realization of expected cash flows

[3] Amounts represent the principal balance of loans associated with MSRs outstanding at December 31, 2016 and December 31, 2015, respectively

[4] Amounts represent the carrying value of MSRs at December 31, 2016 and December 31, 2015, respectively divided by the outstanding balance of the loans associated with these MSRs