Investments (Summary of Net Investment Income) (Details) - USD ($)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Net Investment Income [Line Items]
Investment revenue	$ 3,427,502	$ 2,787,938
Less investment expenses	(795,004)	(820,000)
Net investment income	2,632,498	1,967,938
AFS, Fixed Maturity Securities [Member]
Net Investment Income [Line Items]
Investment revenue	2,500,136	2,050,205
Real Estate Investment [Member]
Net Investment Income [Line Items]
Investment revenue	449,990	348,393
Equity Securities [Member]
Net Investment Income [Line Items]
Investment revenue	434,950	372,151
Cash and Short-Term Investments [Domain]
Net Investment Income [Line Items]
Investment revenue	$ 42,426	$ 17,189

Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

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+ References

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a),(b))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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