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Investments - Summary of Fixed Maturities with Unrealized Losses (Detail) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	$ 78,670,054	$ 286,527,668
Less Than 12 Months, Unrealized Losses	658,213	6,038,617
More Than 12 Months, Fair Value	100,613,863	317,236,307
More Than 12 Months, Unrealized Losses	992,018	11,287,703
U.S. Treasury Securities and Obligations of U.S. Government Corporations and Agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	7,461,245	26,342,398
Less Than 12 Months, Unrealized Losses	45,688	165,774
More Than 12 Months, Fair Value	5,394,735	54,900,027
More Than 12 Months, Unrealized Losses	42,242	1,924,204
Obligations of States and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	23,339,340	28,321,962
Less Than 12 Months, Unrealized Losses	293,516	477,357
More Than 12 Months, Fair Value	2,326,813	21,559,520
More Than 12 Months, Unrealized Losses	1,587	533,741
Corporate Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	19,362,346	149,269,854
Less Than 12 Months, Unrealized Losses	263,280	4,482,870
More Than 12 Months, Fair Value	18,803,546	59,396,885
More Than 12 Months, Unrealized Losses	250,198	2,967,766
Mortgage-Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months, Fair Value	28,507,123	82,593,454
Less Than 12 Months, Unrealized Losses	55,729	912,616
More Than 12 Months, Fair Value	74,088,769	181,379,875
More Than 12 Months, Unrealized Losses	$ 697,991	$ 5,861,992

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months.

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- Definition

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