Summary of Significant Accounting Policies - Allowance For Mortgage Loans (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Accounting Policies [Abstract]
Balance at beginning of the period	$ 1,429,487	$ 1,672,003
Provisions for loan losses	47,707	48,741
Loan charge-offs		(100,537)
Balance the end of the period	$ 1,477,194	$ 1,620,207