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Investments in Securities and Fair Value Schedule of Earnings on Investments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income	$ 4,684,489	$ 4,531,319	$ 4,259,501
Fixed maturities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income	3,506,484	3,439,296	3,282,810
Equity securities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income	1,157,550	1,086,365	973,419
Invested cash and other short-term investments
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income	19,982	5,605	3,202
Miscellaneous interest
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income	$ 473	$ 53	$ 70

X

- Definition

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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- Definition

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+ References

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