Investments, Mortgage Loans on Real Estate, Investment Real Estate, and Notes Receivables (Details)	12 Months Ended
Dec. 31, 2017 USD ($) Loans	Dec. 31, 2016 USD ($) Loans
Loans and Leases Receivable Disclosure [Line Items]
Mortgage loans acquired, including discounted mortgage loans	$ 360,531	$ 6,935,273
Servicing fee on loan	0.25%
Loan origination	0.50%	0.50%
Loan limit threshold for appraised property value	80.00%
Average purchase price to outstanding loan	36.00%	32.00%
Mortgage loans reserve	$ 0	$ 0
Discounted mortgage loan portfolio payment performance [Abstract]
Number of discounted loans with no payments \| Loans	8	8
Number of discounted loans one time payment received \| Loans	1	1
Number of discounted loans irregular payments received \| Loans	2	2
Number of discounted loans periodic payments received \| Loans	5	5
Number of discounted loans \| Loans	16	16
Discounted loans with no payments	$ 0	$ 0
Discounted loans with one time payment received	0	0
Discounted loans with irregular payments received	0	20,834
Discounted loans with periodic payments received	2,003,536	2,168,062
Discounted loans	2,003,536	2,188,896
Discounted mortgage loan holdings [Abstract]
In good standing	15,310,941	16,388,477
Overdue interest over 90 days	0	20,834
Restructured	0	60,827
In process of foreclosure	2,003,536	2,107,234
Total mortgage loans	17,314,477	18,577,372
Total foreclosed loans during the year	0	735,000
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]
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases receivable, ratio of discounted loans to all loans	12.00%	12.00%
Commercial Loans [Member] \| Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Interest rate on mortgage loans	7.50%	8.00%
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	4.00%	3.94%

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

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Financing receivables that are current.

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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Total carrying amount of mortgage loans as of the balance sheet date.

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The amount of mortgage loans on real estate which were foreclosed on during the reporting period.

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The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

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Amount of reserve for write-down of a mortgage loan on real estate.

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Represents the ratio of the average purchase price of the discounted mortgage loans to the outstanding loan amount.

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Value of discounted loans.

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Value of discounted loans with irregular payments received.

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Value of discounted loans without payments.

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Value of discounted loans with one time payment received.

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Value of discounted loans with periodic payments received.

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Amount of loan generally limited to percentage of appraised property Value

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Servicing fee applicable on the mortgage loan in percentage.

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Reflects the percentage derived from dividing discounted loans by total mortgage loans.

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Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements. The balance represents the amount of discounted loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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Number of discounted loans as of period end.

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Represents the number of discounted loans with irregular payments received as of period end.

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Represents the number of discounted loans with one time payment received as of period end.

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Represents the number of discounted loans with periodic payments received as of period end.

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Represents the number of discounted loans without payments as of period end.

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Servicing fee applicable on the mortgage loan percentage.

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