INVESTMENTS (Details) (USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Cost	$ 1,181,965,334
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost	1,123,407,813	1,032,695,902
Gross unrealized gains	98,434,234	108,828,734
Gross unrealized losses	24,009,760	1,435,954
Estimated fair value	1,197,832,287	1,140,088,682
Amount at which shown in the balance sheet	1,256,389,808
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	318,106,929	68,639,279
Twelve months or longer, Fair value	43,693,136	1,884,000
Total, Fair value	361,800,065	70,523,279
Less than twelve months, Unrealized losses	18,717,528	1,319,954
Twelve months or longer, Unrealized losses	5,292,232	116,000
Total, Unrealized losses	24,009,760	1,435,954
Amortized cost
Due in one year or less	4,081,655
Due after one year through five years	208,280,054
Due after five years through ten years	144,873,434
Due after ten years	493,093,860
Mortgage-backed securities	159,243,322
Totals	1,009,572,325
Estimated fair value
Due in one year or less	4,129,740
Due after one year through five years	220,054,211
Due after five years through ten years	148,508,936
Due after ten years	492,172,360
Mortgage-backed securities	163,118,766
Totals	1,027,984,013	999,794,857
Realized Investment Gains (Losses) [Abstract]
'Other-than-temporary' impairments	(63,647)	(185,623)	(5,960,133)
Net realized investment gains (losses)	8,996,545	8,017,028	9,303,293
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance at beginning of year	0	0	207,854
Reduction for credit loss associated with previously recognized other-than-temporary impairment due to management's intent to sell the security	0	0	(207,854)
Balance at end of year	0	0	0
Investment Income, Net [Abstract]
Interest on fixed maturity securities	40,062,086	41,699,293	44,874,829
Dividends on equity securities	4,619,367	3,851,932	2,361,929
Interest on short-term investments	27,083	128,769	56,581
Return on long-term investments	21,866	11,584	27,472
Total investment income	44,730,402	45,691,578	47,320,811
Security litigation income	219,199	58,711	86,948
Investment expenses	(1,927,426)	(1,605,215)	(1,296,834)
Net investment income (loss)	43,022,175	44,145,074	46,110,925
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax [Abstract]
Net changes in unrealized holding gains (losses), income tax amount	(11,538,908)	10,043,215	7,463,995
Net changes in unrealized holding gains (losses) net of tax	(21,429,398)	18,651,683	13,861,700
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	1,009,572,325
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		920,843,939
Gross unrealized gains	41,235,909	79,822,707
Gross unrealized losses	22,824,221	871,789
Estimated fair value		999,794,857
Amount at which shown in the balance sheet	1,027,984,013
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	308,970,965	63,828,814
Twelve months or longer, Fair value	42,209,136	0
Total, Fair value	351,180,101	63,828,814
Less than twelve months, Unrealized losses	18,047,989	871,789
Twelve months or longer, Unrealized losses	4,776,232	0
Total, Unrealized losses	22,824,221	871,789
Realized Investment Gains (Losses) [Abstract]
Held-to-maturity, Gross realized investment gains	0	0	47,077
Available-for-sale, Gross realized investment gains	1,225,954	795,199	1,236,302
Available-for-sale, Gross realized investment losses	(725,062)	(9,777)	(572,071)
'Other-than-temporary' impairments	0	0	(221,956)
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax [Abstract]
Net changes in unrealized holding gains (losses) before tax	(60,539,230)	20,686,958	26,309,716
Net changes in unrealized holding gains (losses), income tax amount	(21,188,730)	7,240,435	9,208,402
Net changes in unrealized holding gains (losses) net of tax	(39,350,500)	13,446,523	17,101,314
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	9,539,657
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		4,697,762
Gross unrealized gains	191,560	287,140
Gross unrealized losses	318,720	0
Estimated fair value		4,984,902
Amount at which shown in the balance sheet	9,412,497
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	4,506,640
Twelve months or longer, Fair value	0
Total, Fair value	4,506,640
Less than twelve months, Unrealized losses	318,720
Twelve months or longer, Unrealized losses	0
Total, Unrealized losses	318,720
US Government-sponsored Enterprises Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	156,980,739
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		159,548,303
Gross unrealized gains	1,355,805	3,228,302
Gross unrealized losses	11,390,825	333,975
Estimated fair value		162,442,630
Amount at which shown in the balance sheet	146,945,719
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	93,855,585	33,950,271
Twelve months or longer, Fair value	24,053,560	0
Total, Fair value	117,909,145	33,950,271
Less than twelve months, Unrealized losses	8,119,934	333,975
Twelve months or longer, Unrealized losses	3,270,891	0
Total, Unrealized losses	11,390,825	333,975
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	346,554,566
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		335,188,220
Gross unrealized gains	15,039,209	35,776,373
Gross unrealized losses	4,542,086	2,479
Estimated fair value		370,962,114
Amount at which shown in the balance sheet	357,051,689
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	74,522,866	3,234,180
Twelve months or longer, Fair value	3,008,580	0
Total, Fair value	77,531,446	3,234,180
Less than twelve months, Unrealized losses	4,335,400	2,479
Twelve months or longer, Unrealized losses	206,686	0
Total, Unrealized losses	4,542,086	2,479
Commercial Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	63,184,992
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		69,952,036
Gross unrealized gains	5,842,361	10,412,989
Gross unrealized losses	87,776	15,843
Estimated fair value		80,349,182
Amount at which shown in the balance sheet	68,939,577
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	10,550,634	3,773,043
Twelve months or longer, Fair value	0	0
Total, Fair value	10,550,634	3,773,043
Less than twelve months, Unrealized losses	87,776	15,843
Twelve months or longer, Unrealized losses	0	0
Total, Unrealized losses	87,776	15,843
Residential Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	96,058,330
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		46,286,598
Gross unrealized gains	1,073,040	1,777,113
Gross unrealized losses	2,952,181	274,107
Estimated fair value		47,789,604
Amount at which shown in the balance sheet	94,179,189
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	44,243,259	5,303,741
Twelve months or longer, Fair value	4,599,942	0
Total, Fair value	48,843,201	5,303,741
Less than twelve months, Unrealized losses	2,481,862	274,107
Twelve months or longer, Unrealized losses	470,319	0
Total, Unrealized losses	2,952,181	274,107
Collateralized Debt Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	11,455,608
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		9,720,662
Gross unrealized gains	1,192,028	1,566,186
Gross unrealized losses	0	0
Estimated fair value		11,286,848
Amount at which shown in the balance sheet	12,647,636
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	325,798,433
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		295,450,358
Gross unrealized gains	16,541,906	26,774,604
Gross unrealized losses	3,532,633	245,385
Estimated fair value		321,979,577
Amount at which shown in the balance sheet	338,807,706
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	81,291,981	17,567,579
Twelve months or longer, Fair value	10,547,054	0
Total, Fair value	91,839,035	17,567,579
Less than twelve months, Unrealized losses	2,704,297	245,385
Twelve months or longer, Unrealized losses	828,336	0
Total, Unrealized losses	3,532,633	245,385
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	113,835,488
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		111,851,963
Gross unrealized gains	57,198,325	29,006,027
Gross unrealized losses	1,185,539	564,165
Estimated fair value		140,293,825
Amount at which shown in the balance sheet	169,848,274
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	9,135,964	4,810,465
Twelve months or longer, Fair value	1,484,000	1,884,000
Total, Fair value	10,619,964	6,694,465
Less than twelve months, Unrealized losses	669,539	448,165
Twelve months or longer, Unrealized losses	516,000	116,000
Total, Unrealized losses	1,185,539	564,165
Realized Investment Gains (Losses) [Abstract]
Available-for-sale, Gross realized investment gains	9,457,892	9,983,532	18,604,135
Available-for-sale, Gross realized investment losses	(898,592)	(2,566,303)	(4,052,016)
'Other-than-temporary' impairments	(63,647)	(185,623)	(5,738,178)
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax [Abstract]
Net changes in unrealized holding gains (losses) before tax	27,570,924	8,007,940	(4,984,021)
Net changes in unrealized holding gains (losses), income tax amount	9,649,822	2,802,780	(1,744,407)
Net changes in unrealized holding gains (losses) net of tax	17,921,102	5,205,160	(3,239,614)
Common stocks Financial services [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	19,272,973
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		14,496,766
Gross unrealized gains	9,374,101	3,630,544
Gross unrealized losses	148,745	33,922
Estimated fair value		18,093,388
Amount at which shown in the balance sheet	28,498,329
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value		881,580
Twelve months or longer, Fair value		0
Total, Fair value		881,580
Less than twelve months, Unrealized losses		33,922
Twelve months or longer, Unrealized losses		0
Total, Unrealized losses		33,922
Common stocks Information technology [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	12,644,716
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		12,331,378
Gross unrealized gains	6,301,287	4,722,076
Gross unrealized losses	28,635	127,690
Estimated fair value		16,925,764
Amount at which shown in the balance sheet	18,917,368
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	609,630	1,435,122
Twelve months or longer, Fair value	0	0
Total, Fair value	609,630	1,435,122
Less than twelve months, Unrealized losses	28,635	127,690
Twelve months or longer, Unrealized losses	0	0
Total, Unrealized losses	28,635	127,690
Common stocks Healthcare [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	12,801,287
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		14,823,967
Gross unrealized gains	9,143,327	4,199,882
Gross unrealized losses	0	0
Estimated fair value		19,023,849
Amount at which shown in the balance sheet	21,944,614
Common stocks Consumer staples [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	9,162,313
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		12,019,892
Gross unrealized gains	3,848,590	1,593,039
Gross unrealized losses	221	3,404
Estimated fair value		13,609,527
Amount at which shown in the balance sheet	13,010,682
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	29,648	90,080
Twelve months or longer, Fair value	0	0
Total, Fair value	29,648	90,080
Less than twelve months, Unrealized losses	221	3,404
Twelve months or longer, Unrealized losses	0	0
Total, Unrealized losses	221	3,404
Common stocks Consumer discretionary [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	10,722,050
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		10,829,547
Gross unrealized gains	10,309,245	6,261,000
Gross unrealized losses	0	0
Estimated fair value		17,090,547
Amount at which shown in the balance sheet	21,031,295
Common stocks Energy [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	14,102,214
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		14,629,926
Gross unrealized gains	7,341,182	4,800,404
Gross unrealized losses	326,131	0
Estimated fair value		19,430,330
Amount at which shown in the balance sheet	21,117,265
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	1,450,037
Twelve months or longer, Fair value	0
Total, Fair value	1,450,037
Less than twelve months, Unrealized losses	326,131
Twelve months or longer, Unrealized losses	0
Total, Unrealized losses	326,131
Common stocks Industrials [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	11,189,958
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		7,638,633
Gross unrealized gains	6,075,540	936,183
Gross unrealized losses	1,354	0
Estimated fair value		8,574,816
Amount at which shown in the balance sheet	17,264,144
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	625,124
Twelve months or longer, Fair value	0
Total, Fair value	625,124
Less than twelve months, Unrealized losses	1,354
Twelve months or longer, Unrealized losses	0
Total, Unrealized losses	1,354
Common stocks Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	13,357,539
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		16,749,417
Gross unrealized gains	4,489,391	2,215,172
Gross unrealized losses	35,753	283,149
Estimated fair value		18,681,440
Amount at which shown in the balance sheet	17,811,177
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	1,498,700	2,403,683
Twelve months or longer, Fair value	0	0
Total, Fair value	1,498,700	2,403,683
Less than twelve months, Unrealized losses	35,753	283,149
Twelve months or longer, Unrealized losses	0	0
Total, Unrealized losses	35,753	283,149
Nonredeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	10,582,438
Amortized cost and estimated fair value of available-for-sale securities [Abstract]
Amortized cost		8,332,437
Gross unrealized gains	315,662	647,727
Gross unrealized losses	644,700	116,000
Estimated fair value		8,864,164
Amount at which shown in the balance sheet	10,253,400
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	2,121,300	0
Twelve months or longer, Fair value	1,484,000	1,884,000
Total, Fair value	3,605,300	1,884,000
Less than twelve months, Unrealized losses	128,700	0
Twelve months or longer, Unrealized losses	516,000	116,000
Total, Unrealized losses	644,700	116,000
Equity Securities [Member] \| Common stocks Financial services [Member]
Available for sale securities continuous unrealized loss position [Abstract]
Less than twelve months, Fair value	2,801,525
Twelve months or longer, Fair value	0
Total, Fair value	2,801,525
Less than twelve months, Unrealized losses	148,745
Twelve months or longer, Unrealized losses	0
Total, Unrealized losses	$ 148,745

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Amounts received for security litigation.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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