Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Premiums:
Life insurance	$ 42,091	$ 41,257	$ 123,728	$ 118,608
Accident and health insurance	380	414	1,135	1,244
Property insurance	1,276	1,281	3,658	3,792
Net investment income	9,570	8,114	27,224	23,303
Realized investment gains, net	30	763	143	1,107
Decrease in fair value of warrants	0	241	0	314
Other income	269	112	882	321
Total revenue	53,616	52,182	156,770	148,689
Insurance benefits paid or provided:
Claims and surrenders	16,763	15,627	48,229	46,490
Increase in future policy benefit reserves	17,398	16,901	52,253	47,793
Policyholders' dividends	2,362	2,600	6,671	6,755
Total insurance benefits paid or provided	36,523	35,128	107,153	101,038
Commissions	9,940	9,769	29,427	28,164
Other general expenses	6,163	6,055	20,204	19,013
Capitalization of deferred policy acquisition costs	(7,067)	(7,547)	(21,101)	(20,530)
Amortization of deferred policy acquisition costs	4,758	4,134	13,747	12,693
Amortization of cost of customer relationships acquired	681	598	1,819	1,834
Total benefits and expenses	50,998	48,137	151,249	142,212
Income before federal income tax	2,618	4,045	5,521	6,477
Federal income tax expense (benefit)	794	1,134	1,534	1,651
Net income	1,824	2,911	3,987	4,826
Unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains (losses) arising during period	(4,128)	8,542	(29,576)	17,106
Reclassification adjustments for gains included in net income	(84)	(708)	(188)	(915)
Unrealized gains (losses) on available-for-sale securities, net	(4,212)	7,834	(29,764)	16,191
Income tax expense (benefit) on unrealized gains on available-for-sale securities	(1,474)	2,878	(10,400)	5,837
Other comprehensive income (loss)	(2,738)	4,956	(19,364)	10,354
Comprehensive income (loss)	$ (914)	$ 7,867	$ (15,377)	$ 15,180
Common Stock Class A [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.03	$ 0.06	$ 0.08	$ 0.10
Diluted earnings per share (in dollars per share)	$ 0.03	$ 0.06	$ 0.08	$ 0.10
Common Stock Class B [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.02	$ 0.03	$ 0.04	$ 0.05
Diluted earnings per share (in dollars per share)	$ 0.02	$ 0.03	$ 0.04	$ 0.05