Investments, Available for Sale Securities (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Fixed maturities [Abstract]
Original or amortized cost	$ 165,885,262	$ 170,595,860
Gross unrealized gains	20,716,810	18,312,061
Gross unrealized losses	(478,860)	(1,668,203)
Estimated fair value	186,123,212	187,239,718	[1]
Equity securities [Abstract]
Original or amortized cost	37,097,494	37,014,712
Gross unrealized gains	22,866,154	15,214,862
Gross unrealized losses	(385,620)	(522,471)
Estimated fair value	59,578,028	51,707,103	[1]
Total [Abstract]
Original or amortized cost	202,982,756	207,610,572
Gross unrealized gains	43,582,964	33,526,923
Gross unrealized losses	(864,480)	(2,190,674)
Estimated fair value	245,701,240	238,946,821
U.S. Government and Government Agencies and Authorities [Member]
Fixed maturities [Abstract]
Original or amortized cost	7,678,557	9,058,210
Gross unrealized gains	47,605	74,581
Gross unrealized losses	(67,183)	(96,981)
Estimated fair value	7,658,979	9,035,810
US Special Revenue and Assessments [Member]
Fixed maturities [Abstract]
Original or amortized cost	9,010,920	10,145,531
Gross unrealized gains	755,683	1,002,789
Gross unrealized losses	0	(14,043)
Estimated fair value	9,766,603	11,134,277
All Other Corporate Bonds [Member]
Fixed maturities [Abstract]
Original or amortized cost	149,195,785	151,392,119
Gross unrealized gains	19,913,522	17,234,691
Gross unrealized losses	(411,677)	(1,557,179)
Estimated fair value	$ 168,697,630	$ 167,069,631

[1] Balance sheet audited at December 31, 2016.