ACCUMULATED OTHER COMPREHENSIVE INCOME - Reclassifications out of Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income Loss [Line Items]
Net realized investment gains (losses)	$ 8,996,545		$ 8,017,028	$ 9,303,293
Income tax expense (benefit), current	(16,926,838)		(11,594,581)	9,818,259
Total reclassification adjustment	4,426,533	[1]
Unrealized Gains and (Losses) on Available-for-sale securities | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Net realized investment gains (losses)	8,996,545	[1]
Income tax expense (benefit), current	(3,148,791)	[1]
Total reclassification adjustment	5,847,754	[1]
Unrecognized pension and postretirement benefit obligations | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Net actuarial loss	(2,894,677)	[1],[2]
Prior service credit	708,183	[1],[2]
Total before tax	(2,186,494)	[1]
Income tax expense (benefit), current	765,273	[1]
Total reclassification adjustment	$ (1,421,221)	[1]

[1] Amounts in parentheses indicate debits to net income

[2] These accumulated other comprehensive income components are included in the computation of net periodic pension and postretirement benefit costs (see Note 12, Employee Retirement Plans, for additional details).