Fair Value Measurements, Carrying Values and Estimated Fair Values of Financial Instruments not Recorded at Fair Value (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Carrying Amount [Member]
Assets [Abstract]
Mortgage loans on real estate	$ 19,982,199	$ 20,802,365
Investment real estate	37,807,570	38,086,391
Notes receivable	17,359,885	17,682,296
Policy loans	8,542,436	8,590,524
Carrying Amount [Member] | Common Stock [Member]
Assets [Abstract]
Equity securities, at cost	5,860,000	5,860,000
Carrying Amount [Member] | Preferred Stock [Member]
Assets [Abstract]
Equity securities, at cost	8,529,189	8,529,189
Estimated Fair Value [Member]
Assets [Abstract]
Mortgage loans on real estate	19,982,199	20,802,365
Investment real estate	81,985,379	82,689,332
Notes receivable	17,375,712	17,709,894
Policy loans	8,542,436	8,590,524
Estimated Fair Value [Member] | Common Stock [Member]
Assets [Abstract]
Equity securities, at cost	5,860,000	5,860,000
Estimated Fair Value [Member] | Preferred Stock [Member]
Assets [Abstract]
Equity securities, at cost	8,529,189	8,529,189
Equity securities, at cost	$ 14,389,189	14,389,189	[1]
Minimum [Member]
Liabilities [Abstract]
Policy loan interest rate	4.00%
Maximum [Member]
Liabilities [Abstract]
Policy loan interest rate	8.00%
Level 1 [Member]
Assets [Abstract]
Mortgage loans on real estate	$ 0	0
Investment real estate	0	0
Notes receivable	0	0
Policy loans	0	0
Level 2 [Member]
Assets [Abstract]
Mortgage loans on real estate	0	0
Investment real estate	0	0
Notes receivable	0	0
Policy loans	0	0
Level 3 [Member]
Assets [Abstract]
Mortgage loans on real estate	19,982,199	20,802,365
Investment real estate	81,985,379	82,689,332
Notes receivable	17,375,712	17,709,894
Policy loans	8,542,436	8,590,524
Common Stock [Member] | Level 1 [Member]
Assets [Abstract]
Equity securities, at cost	0	0
Common Stock [Member] | Level 2 [Member]
Assets [Abstract]
Equity securities, at cost	0	0
Common Stock [Member] | Level 3 [Member]
Assets [Abstract]
Equity securities, at cost	5,860,000	5,860,000
Preferred Stock [Member] | Level 1 [Member]
Assets [Abstract]
Equity securities, at cost	0	0
Preferred Stock [Member] | Level 2 [Member]
Assets [Abstract]
Equity securities, at cost	0	0
Preferred Stock [Member] | Level 3 [Member]
Assets [Abstract]
Equity securities, at cost	$ 8,529,189	$ 8,529,189

[1] Balance sheet audited at December 31, 2019.