Schedule II - Condensed Statement of Income (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Investment income – interest and dividends	$ 3,894,608	$ 3,980,411	$ 3,595,036
Net realized (loss) gain on investments	195,800	1,066,239	28,559
Other	8,274,823	7,701,340	5,532,228
Total Revenues	126,251,497	115,079,092	90,685,156
Salaries, employee benefits and payroll taxes	25,386,511	21,881,540	18,556,802
Office occupancy and operations	4,430,220	3,994,244	3,723,803
Business development	2,145,639	1,856,848	1,671,834
Professional and contract labor fees	2,171,606	2,420,387	1,507,368
Other expenses	755,407	615,053	541,526
(Benefit) Provision for Income Taxes	6,746,000	4,889,000	2,565,000
Less: Net Income Attributable to Redeemable Noncontrolling Interest	(88,528)	(88,411)	0
Net Income Attributable to the Company	14,708,210	11,102,496	6,933,936
Basic Earnings per Common Share	$ 7.15	$ 5.33	$ 3.22
Weighted Average Shares Outstanding – Basic	2,056,169	2,081,703	2,151,350
Diluted Earnings per Common Share	$ 7.08	$ 5.24	$ 3.20
Weighted Average Shares Outstanding – Diluted	2,076,628	2,116,793	2,169,636
Parent Company
Condensed Financial Statements, Captions [Line Items]
Investment income – interest and dividends	348,933	520,511	459,682
Net realized (loss) gain on investments	(50,778)	616,001	(81,389)
Rental income	748,764	736,159	739,524
Other	68,966	(62,253)	16,365
Total Revenues	1,115,885	1,810,418	1,134,182
Salaries, employee benefits and payroll taxes	576,429	459,248	348,463
Office occupancy and operations	408,373	390,227	304,371
Business development	45,022	25,909	37,017
Taxes – other than payroll and income	188,314	240,607	120,445
Professional and contract labor fees	351,093	245,398	139,711
Other expenses	177,810	161,937	113,018
Total operating expenses	1,747,041	1,523,326	1,063,025
Equity in Net Income of Affiliated Companies	15,164,894	10,992,815	6,851,779
Income before Income Taxes	14,533,738	11,279,907	6,922,936
(Benefit) Provision for Income Taxes	(263,000)	89,000	(11,000)
Net Income	14,796,738	11,190,907	6,933,936
Less: Net Income Attributable to Redeemable Noncontrolling Interest	(88,528)	(88,411)	0
Net Income Attributable to the Company	$ 14,708,210	$ 11,102,496	$ 6,933,936
Basic Earnings per Common Share	$ 7.15	$ 5.33	$ 3.22
Weighted Average Shares Outstanding – Basic	2,056,169	2,081,703	2,151,350
Diluted Earnings per Common Share	$ 7.08	$ 5.24	$ 3.20
Weighted Average Shares Outstanding – Diluted	2,076,628	2,116,793	2,169,636