Schedule I (Details)	Dec. 31, 2017 USD ($)
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	$ 161,120,548	[1],[2]
Market Value	185,511,753	[2]
Amount at which shown in the Balance Sheet	185,511,753	[2],[3]
Investments in related party accounted for under the cost and equity method	1,008,254
Fixed maturities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	100,314,085	[1]
Market Value	103,341,083
Amount at which shown in the Balance Sheet	103,341,083	[3]
Government obligation
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	1,042,921
Market Value	1,041,970
Amount at which shown in the Balance Sheet	1,041,970
General obligations of U.S. states, territories and political subdivisions
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	23,979,386
Market Value	24,435,873
Amount at which shown in the Balance Sheet	24,435,873
Special revenue issuer obligations of U.S. states, territories and political subdivisions
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	45,848,032
Market Value	47,470,175
Amount at which shown in the Balance Sheet	47,470,175
Public utilities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	16,953,592
Market Value	17,383,561
Amount at which shown in the Balance Sheet	17,383,561
Corporate debt securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	12,490,154
Market Value	13,009,504
Amount at which shown in the Balance Sheet	13,009,504
Equity securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	26,002,619	[1]
Market Value	47,366,826
Amount at which shown in the Balance Sheet	47,366,826	[3]
Public utilities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	312,656
Market Value	459,265
Amount at which shown in the Balance Sheet	459,265
Banks, trusts and insurance companies
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	5,213,975
Market Value	9,112,321
Amount at which shown in the Balance Sheet	9,112,321
Industrial, miscellaneous and all other
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	17,596,334
Market Value	30,385,656
Amount at which shown in the Balance Sheet	30,385,656
Technology
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	2,879,654
Market Value	7,409,584
Amount at which shown in the Balance Sheet	7,409,584
Short-term investments
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	23,779,672
Market Value	23,779,672
Amount at which shown in the Balance Sheet	23,779,672
Other investments
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	11,024,172
Market Value	11,024,172
Amount at which shown in the Balance Sheet	11,024,172
Total other investments
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Cost	34,803,844
Market Value	34,803,844
Amount at which shown in the Balance Sheet	$ 34,803,844

[1] Fixed maturities are shown at amortized cost and equity securities are shown at original cost

[2] The above summary of investments does not include investments in related parties accounted for under the cost and equity methods of accounting in the amount of $1,008,254.

[3] All fixed maturities presented are classified as available-for-sale and shown at estimated fair value. Equity securities are shown at fair value.