Investments, Mortgage Loans, Investment Real Estate, Notes Receivable, and Short-Term Investments (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Mortgage Loans [Abstract]
Mortgage loans acquired, including discounted mortgage loans	$ 747,941	$ 5,098,138
Servicing fee on loan	0.25%
Loan origination	0.50%
Loan limit threshold for appraised property value	80.00%
Mortgage loans reserve	$ 0		$ 0
Mortgage loan holdings [Abstract]
Total mortgage loans	13,985,960		20,802,365	[1]
Investment Real Estate [Abstract]
Impairment on investment real estate	0
Total investment real estate	$ 35,298,846		$ 38,086,391	[1]
Oil & Gas Royalties - as a % of total Inv RE	52.00%		48.00%
RE Acquired	$ 1,402,593	(0)
Notes Receivable [Abstract]
Valuation allowance	0		$ 0
Notes receivable acquired	6,000,000	3,500,000
Short-Term Investments [Abstract]
Short-term investments acquired	$ (0)	$ 7,890,228
Minimum [Member]
Mortgage Loans [Abstract]
Loan delinquent period after which letters are sent to mortgagee	30 days
Loan delinquent period after which monthly listing of loans are provided to management	60 days
Loan delinquent period after which loans are placed on non-performing status and classified as delinquent loans	90 days
Investment Real Estate [Abstract]
Estimated useful life	3 years
Maximum [Member]
Investment Real Estate [Abstract]
Estimated useful life	30 years
Raw Land [Member]
Investment Real Estate [Abstract]
Total investment real estate	$ 11,050,401		11,727,103
Commercial [Member]
Investment Real Estate [Abstract]
Total investment real estate	2,710,224		3,530,064
Residential [Member]
Investment Real Estate [Abstract]
Total investment real estate	3,279,519		2,797,648
Land, Minerals and Royalty Interests [Member]
Investment Real Estate [Abstract]
Total investment real estate	18,258,702		20,031,576
In Good Standing [Member]
Mortgage loan holdings [Abstract]
Total mortgage loans	11,905,187		18,704,351
Overdue Interest over 90 Days [Member]
Mortgage loan holdings [Abstract]
Total mortgage loans	$ 2,080,773		$ 2,098,014
Farm Loans [Member] | Minimum [Member]
Mortgage Loans [Abstract]
Interest rate on mortgage loans	4.50%		4.50%
Farm Loans [Member] | Maximum [Member]
Mortgage Loans [Abstract]
Interest rate on mortgage loans	5.00%		4.50%
Commercial Loans [Member] | Minimum [Member]
Mortgage Loans [Abstract]
Interest rate on mortgage loans	4.10%		4.24%
Commercial Loans [Member] | Maximum [Member]
Mortgage Loans [Abstract]
Interest rate on mortgage loans	5.25%		5.25%
Residential Loans [Member] | Minimum [Member]
Mortgage Loans [Abstract]
Interest rate on mortgage loans	4.95%		4.95%
Residential Loans [Member] | Maximum [Member]
Mortgage Loans [Abstract]
Interest rate on mortgage loans	4.95%		4.95%

[1] Balance sheet audited at December 31, 2020.