Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Premiums:
Life insurance	$ 41,397	$ 39,414
Accident and health insurance	351	349
Property insurance	1,265	1,177
Net investment income	9,906	8,389
Realized investment (losses) gains, net	(56)	31
Other income	169	186
Total revenue	53,032	49,546
Insurance benefits paid or provided:
Claims and surrenders	16,457	14,806
Increase in future policy benefit reserves	17,698	16,959
Policyholders' dividends	2,102	2,074
Total insurance benefits paid or provided	36,257	33,839
Commissions	9,910	9,058
Other general expenses	6,502	6,699
Capitalization of deferred policy acquisition costs	(7,068)	(6,362)
Amortization of deferred policy acquisition costs	5,209	4,626
Amortization of cost of customer relationships acquired	531	578
Total benefits and expenses	51,341	48,438
Income before federal income tax	1,691	1,108
Federal income tax expense	494	252
Net income	1,197	856
Unrealized gains on available-for-sale securities:
Unrealized holding gains arising during period	14,096	96
Reclassification adjustments for gains (losses) included in net income	32	(31)
Unrealized gains on available-for-sale securities, net	14,128	65
Income tax expense on unrealized gains on available-for-sale securities	4,954	27
Other comprehensive income	9,174	38
Comprehensive income	$ 10,371	$ 894
Common Stock Class A [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.02	$ 0.02
Diluted earnings per share (in dollars per share)	$ 0.02	$ 0.02
Common Stock Class B [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.01	$ 0.01
Diluted earnings per share (in dollars per share)	$ 0.01	$ 0.01