CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2008	$ 13,267,668	$ 95,639,349	$ (9,930,112)	$ 183,939,453
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock through affiliate's stock option plans	17,383	301,489
Increase resulting from stock-based compensation expense associated with affiliate's stock option plans allocated to the Company		282,528
Repurchase of common stock	(170,570)	(3,419,084)
Cumulative effect adjustment resulting from adoption of ASC Topic 310 impairment loss provision, net of deferred income taxes			(643,500)	643,500
Change in unrealized gains on investment securities, net of deferred income taxes			25,537,097
Change in unrealized gains on fixed maturity securities with 'other-than-temporary' impairment, net of deferred income taxes			538,653
Change in funded status of affiliate's pension and postretirement benefit plans, net of deferred income taxes			550,204
Net income (loss)				45,370,614	45,370,614
Dividends paid to public stockholders				(3,856,533)
Dividends paid to affiliate				(5,650,454)
Balance at Dec. 31, 2009	13,114,481	92,804,282	16,052,342	220,446,580	342,417,685
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock through affiliate's stock option plans	57,597	1,048,008
Increase resulting from stock-based compensation expense associated with affiliate's stock option plans allocated to the Company		137,141
Repurchase of common stock	(244,400)	(5,052,137)
Change in unrealized gains on investment securities, net of deferred income taxes			8,617,101
Change in unrealized gains on fixed maturity securities with 'other-than-temporary' impairment, net of deferred income taxes			34,995
Change in funded status of affiliate's pension and postretirement benefit plans, net of deferred income taxes			(208,951)
Net income (loss)				31,346,323	31,346,323
Dividends paid to public stockholders				(3,783,428)
Dividends paid to affiliate				(5,728,932)
Balance at Dec. 31, 2010	12,927,678	88,937,294	24,495,487	242,280,543	368,641,002
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock through affiliate's stock option plans	46,113	928,380
Increase resulting from stock-based compensation expense associated with affiliate's stock option plans allocated to the Company		196,654
Repurchase of common stock	(98,200)	(1,751,696)
Change in unrealized gains on investment securities, net of deferred income taxes			13,791,848
Change in unrealized gains on fixed maturity securities with 'other-than-temporary' impairment, net of deferred income taxes			69,852
Change in funded status of affiliate's pension and postretirement benefit plans, net of deferred income taxes			(11,016,677)
Net income (loss)				(2,097,614)	(2,097,614)
Dividends paid to public stockholders				(3,898,471)
Dividends paid to affiliate				(6,042,846)
Balance at Dec. 31, 2011	$ 12,875,591	$ 88,310,632	$ 27,340,510	$ 230,241,612	$ 358,768,345