Losses And Loss Adjustment Expense Reserves - Incurred and Paid Claims (Details)	Dec. 31, 2018 USD ($) Claims	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 200,539,837
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	22,270,252
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	159,814,942
Short-duration Insurance Contracts, Accident Year 2009
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	17,619,015	$ 17,622,828	$ 18,554,526	$ 19,050,348	$ 19,667,376	$ 20,398,961	$ 21,012,811	$ 21,571,780	$ 21,412,289	$ 21,751,337
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative number of reported claims | Claims	1,013
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 17,568,228	17,568,877	17,550,304	17,380,065	17,336,454	17,121,818	16,180,346	13,160,200	9,592,059	$ 4,919,359
Short-duration Insurance Contracts, Accident Year 2010
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	16,822,859	16,828,688	17,641,161	18,075,737	18,639,537	19,326,007	19,883,812	20,437,443	21,418,368
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative number of reported claims | Claims	974
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 16,721,059	16,720,942	16,778,214	16,283,050	15,330,864	14,756,510	12,955,467	10,695,223	$ 7,535,122
Short-duration Insurance Contracts, Accident Year 2011
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	19,094,732	19,187,240	18,224,634	17,879,595	17,014,895	17,605,460	17,900,250	18,120,563
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative number of reported claims | Claims	1,020
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 19,087,866	19,027,232	17,422,583	16,115,802	14,251,525	11,212,490	8,608,287	$ 4,719,943
Short-duration Insurance Contracts, Accident Year 2012
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	18,235,335	17,914,837	18,050,131	18,344,175	18,895,666	19,532,022	18,511,598
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 153,904
Cumulative number of reported claims | Claims	967
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 17,638,646	17,265,513	16,734,967	15,369,629	13,411,125	11,673,621	$ 6,719,982
Short-duration Insurance Contracts, Accident Year 2013
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	22,397,394	22,798,398	21,742,580	20,323,841	20,118,343	19,570,946
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 171,857
Cumulative number of reported claims | Claims	849
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 21,875,978	21,415,490	19,067,334	14,319,057	10,656,777	$ 7,594,731
Short-duration Insurance Contracts, Accident Year 2014
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	18,034,749	17,640,211	14,930,960	15,394,995	16,884,731
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 594,893
Cumulative number of reported claims | Claims	757
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 16,843,128	14,556,687	9,173,947	6,082,893	$ 3,826,263
Short-duration Insurance Contracts, Accident Year 2015
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	21,707,615	22,471,512	20,840,034	20,452,199
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 1,846,071
Cumulative number of reported claims | Claims	725
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 17,700,688	14,978,639	11,151,955	$ 6,263,796
Short-duration Insurance Contracts, Accident Year 2016
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	24,126,775	22,908,016	21,646,663
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 3,180,439
Cumulative number of reported claims | Claims	787
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 15,916,432	12,009,273	$ 7,435,120
Short-duration Insurance Contracts, Accident Year 2017
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	23,453,130	21,914,736
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 6,990,158
Cumulative number of reported claims | Claims	782
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 11,503,228	$ 6,405,641
Short-duration Insurance Contracts, Accident Year 2018
Claims Development [Line Items]
Cumulative Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	19,048,233
Total of Incurred But Not Reported Liabilities Plus Expected Development on Reported Claims	$ 9,332,930
Cumulative number of reported claims | Claims	528
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,959,689