Consolidated Statements of Shareholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interest [Member]	Total
Adoption of Accounting Standards Update No 2016-01 | ASU 2016-01 [Member]	$ 0	$ 0	$ 18,277,328	$ (18,277,328)	$ 0	$ 0
Balance at Dec. 31, 2017	3,333	37,536,164	39,040,456	32,952,338	899,227	110,431,518
Balance at Dec. 31, 2017	3,333	37,536,164	57,317,784	14,675,010	899,227	110,431,518
Common stock issued during year	13	360,799	0	0	0	360,812
Treasury shares acquired and retired	(50)	(1,329,098)	0	0	0	(1,329,148)
Net income attributable to common shareholders	0	0	12,391,117	0	0	12,391,117
Unrealized holding income on securities net of noncontrolling interest and reclassification adjustment and taxes	0	0	0	(14,612,515)	0	(14,612,515)
Contributions	0	0	0	0	0	0
Distributions	0	0	0	0	(374,252)	(374,252)
Gain attributable to noncontrolling interest	0	0	0	0	209,178	209,178
Balance at Dec. 31, 2018	3,296	36,567,865	69,708,901	62,495	734,153	107,076,710
Common stock issued during year	11	353,876	0	0	0	353,887
Treasury shares acquired and retired	(28)	(909,340)	0	0	0	(909,368)
Net income attributable to common shareholders	0	0	16,270,777	0	0	16,270,777
Unrealized holding income on securities net of noncontrolling interest and reclassification adjustment and taxes	0	0	0	8,915,419	0	8,915,419
Contributions	0	0	0	0	0	0
Distributions	0	0	0	0	(535,662)	(535,662)
Gain attributable to noncontrolling interest	0	0	0	0	325,143	325,143
Balance at Dec. 31, 2019	$ 3,279	$ 36,012,401	$ 85,979,678	$ 8,977,914	$ 523,634	$ 131,496,906