Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Premiums:
Life insurance	$ 41,257	$ 38,639	$ 118,608	$ 112,481
Accident and health insurance	414	383	1,244	1,151
Property insurance	1,281	1,277	3,792	3,781
Net investment income	8,114	7,478	23,303	22,281
Realized investment gains, net	763	35	1,107	41
Decrease in fair value of warrants	241	239	314	1,454
Other income	112	282	321	509
Total revenue	52,182	48,333	148,689	141,698
Insurance benefits paid or provided:
Claims and surrenders	15,627	14,803	46,490	44,587
Increase in future policy benefit reserves	16,901	14,365	47,793	39,683
Policyholders' dividends	2,600	2,169	6,755	5,751
Total insurance benefits paid or provided	35,128	31,337	101,038	90,021
Commissions	9,769	9,224	28,164	28,226
Other general expenses	6,055	6,642	19,013	19,743
Capitalization of deferred policy acquisition costs	(7,547)	(6,531)	(20,530)	(20,536)
Amortization of deferred policy acquisition costs	4,134	4,171	12,693	12,480
Amortization of cost of customer relationships acquired	598	708	1,834	2,113
Total benefits and expenses	48,137	45,551	142,212	132,047
Income before federal income tax	4,045	2,782	6,477	9,651
Federal income tax expense	1,134	729	1,651	2,967
Net income	2,911	2,053	4,826	6,684
Unrealized gains on available-for-sale securities:
Unrealized holding gains arising during period	8,542	15,431	17,106	27,546
Reclassification adjustments for gains included in net income	(708)	0	(915)	0
Unrealized gains on available-for-sale securities, net	7,834	15,431	16,191	27,546
Income tax expense on unrealized gains on available-for-sale securities	2,878	5,460	5,837	9,700
Other comprehensive income	4,956	9,971	10,354	17,846
Comprehensive income	$ 7,867	$ 12,024	$ 15,180	$ 24,530
Common Stock Class A [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.06	$ 0.04	$ 0.10	$ 0.13
Diluted earnings per share (in dollars per share)	$ 0.06	$ 0.04	$ 0.10	$ 0.13
Common Stock Class B [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.03	$ 0.02	$ 0.05	$ 0.07
Diluted earnings per share (in dollars per share)	$ 0.03	$ 0.02	$ 0.05	$ 0.07