Investments - Schedule of Net Investment Income (Details) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Marketable Securities [Line Items]
Gross investment income	$ 1,514,970	$ 471,822
Limited partnerships	1,625	(2,352)
Net (loss) gain on sales of investments	(34,946)	12,266
Unrealized gain (loss) on equity securities	886,597	(173,743)
Less investment expenses	35,063	25,580
Net investment income	1,479,907	446,242
Bonds
Marketable Securities [Line Items]
Gross investment income	565,070	555,592
Cash and short-term investments
Marketable Securities [Line Items]
Gross investment income	20,655	12,221
Common stock [Member]
Marketable Securities [Line Items]
Gross investment income	66,736	$ 67,838
Other
Marketable Securities [Line Items]
Gross investment income	$ 9,233

Investment income (loss), operating.

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117546-209714

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
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Amount of expenses related to the generation of investment income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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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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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
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