Investments, Mortgage Loans, Investment Real Estate, and Notes Receivable (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Mortgage loans acquired, including discounted mortgage loans	$ 0	$ 354,306
Servicing fee on loan	0.25%
Loan origination	0.50%
Loan limit threshold for appraised property value	80.00%
Mortgage loans reserve	$ 0	0
Discounted mortgage loan holdings [Abstract]
In good standing	11,910,020	15,310,941
Overdue interest over 90 days	3,175,539	0
Restructured	0	0
In process of foreclosure	0	2,003,536
Total mortgage loans	15,085,559	17,314,477	[1]
Total foreclosed loans during the year	0	0
Notes Receivable [Abstract]
Valuation allowance	$ 0	$ 0
Farm Loans [Member] | Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Interest rate on mortgage loans	5.00%	5.00%
Farm Loans [Member] | Minimum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Interest rate on mortgage loans	5.00%	5.00%
Commercial Loans [Member] | Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Interest rate on mortgage loans	7.50%	7.50%
Commercial Loans [Member] | Minimum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Interest rate on mortgage loans	4.00%	4.00%
Residential Loans [Member] | Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Interest rate on mortgage loans	8.00%	8.00%
Residential Loans [Member] | Minimum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Interest rate on mortgage loans	5.00%	4.00%

[1] Balance sheet audited at December 31, 2017.