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Investments (Details 2) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Estimated fair value	$ 6,348,590	$ 3,518,626
Other Investments [Member]
Cost	4,149,381	2,149,381
Estimated fair value	6,348,590	3,518,626
Gross gains	2,199,209	1,369,245
Hedge Fund [Member]
Cost	3,999,381	1,999,381
Estimated fair value	6,198,590	3,368,626
Gross gains	2,199,209	1,369,245
Real Estate Limited Partnership [Member]
Cost	150,000	150,000
Estimated fair value	150,000	150,000
Gross gains	0	0
Equity Securities [Member]
Cost	32,651,343	32,571,166
Estimated fair value	35,430,803	34,413,313
Gross gains	3,018,393	2,673,789
Gross losses	238,933	831,642
Preferred Stock [Member]
Cost	19,827,370	18,097,942
Estimated fair value	20,814,004	18,524,277
Gross gains	1,207,776	853,277
Gross losses	221,142	426,942
Common stock, mutual fund and exchange traded funds [Member]
Cost	12,823,973	14,473,224
Estimated fair value	14,616,799	15,889,036
Gross gains	1,810,617	1,820,512
Gross losses	$ 17,791	$ 404,700

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(f,g))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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