Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Measured on a Recurring Basis [Member] - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	$ 72,174,265	$ 73,159,589
Equity securities, at fair value	173,918,184	170,150,876
Short-term investments	7,390,012	9,808,824
Total financial assets	253,482,461	253,119,289
U.S. Government and Government Agencies and Authorities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	22,707,968	22,750,726
U.S. Special Revenue and Assessments [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	7,415,539	7,453,922
Corporate Securities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	42,050,758	42,954,941
Common Stock [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	88,350,741	84,340,441
Limited Liability Companies [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	85,567,443	85,810,435
Estimated Fair Value [Member] | Level 1 [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	22,707,968	22,750,726
Equity securities, at fair value	79,362,164	75,400,093
Short-term investments	7,390,012	9,808,824
Total financial assets	109,460,144	107,959,643
Estimated Fair Value [Member] | Level 1 [Member] | U.S. Government and Government Agencies and Authorities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	22,707,968	22,750,726
Estimated Fair Value [Member] | Level 1 [Member] | U.S. Special Revenue and Assessments [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	0	0
Estimated Fair Value [Member] | Level 1 [Member] | Corporate Securities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	0	0
Estimated Fair Value [Member] | Level 1 [Member] | Common Stock [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	79,362,164	75,400,093
Estimated Fair Value [Member] | Level 1 [Member] | Limited Liability Companies [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	0	0
Estimated Fair Value [Member] | Level 2 [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	49,466,297	50,408,863
Equity securities, at fair value	5,415,600	5,571,600
Short-term investments	0	0
Total financial assets	54,881,897	55,980,463
Estimated Fair Value [Member] | Level 2 [Member] | U.S. Government and Government Agencies and Authorities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	0	0
Estimated Fair Value [Member] | Level 2 [Member] | U.S. Special Revenue and Assessments [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	7,415,539	7,453,922
Estimated Fair Value [Member] | Level 2 [Member] | Corporate Securities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	42,050,758	42,954,941
Estimated Fair Value [Member] | Level 2 [Member] | Common Stock [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	5,415,600	5,571,600
Estimated Fair Value [Member] | Level 2 [Member] | Limited Liability Companies [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	0	0
Estimated Fair Value [Member] | Level 3 [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	0	0
Equity securities, at fair value	89,140,420	89,179,183
Short-term investments	0	0
Total financial assets	89,140,420	89,179,183
Estimated Fair Value [Member] | Level 3 [Member] | U.S. Government and Government Agencies and Authorities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	0	0
Estimated Fair Value [Member] | Level 3 [Member] | U.S. Special Revenue and Assessments [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	0	0
Estimated Fair Value [Member] | Level 3 [Member] | Corporate Securities [Member]
Fair Value Measurements [Abstract]
Fixed maturities, at fair value	0	0
Estimated Fair Value [Member] | Level 3 [Member] | Common Stock [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	3,572,977	3,368,748
Estimated Fair Value [Member] | Level 3 [Member] | Limited Liability Companies [Member]
Fair Value Measurements [Abstract]
Equity securities, at fair value	$ 85,567,443	$ 85,810,435