Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Premiums:
Life insurance	$ 42,899	$ 41,397
Accident and health insurance	375	351
Property insurance	1,292	1,265
Net investment income	11,069	9,906
Realized investment losses, net	(71)	(56)
Other income	296	169
Total revenue	55,860	53,032
Insurance benefits paid or provided:
Claims and surrenders	19,403	16,457
Increase in future policy benefit reserves	17,298	17,698
Policyholders' dividends	2,309	2,102
Total insurance benefits paid or provided	39,010	36,257
Commissions	9,859	9,910
Other general expenses	7,551	6,502
Capitalization of deferred policy acquisition costs	(6,856)	(7,068)
Amortization of deferred policy acquisition costs	5,299	5,209
Amortization of cost of customer relationships acquired	647	531
Total benefits and expenses	55,510	51,341
Income before federal income tax	350	1,691
Federal income tax (benefit) expense	(75)	494
Net income	425	1,197
Unrealized gains on available-for-sale securities:
Unrealized holding gains arising during period	5,007	14,096
Reclassification adjustments for losses included in net income	36	32
Unrealized gains on available-for-sale securities, net	5,043	14,128
Income tax expense on unrealized gains (losses) on available-for-sale securities	1,765	4,954
Other comprehensive income	3,278	9,174
Comprehensive income	$ 3,703	$ 10,371
Common Stock Class A [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.01	$ 0.02
Diluted earnings per share (in dollars per share)	$ 0.01	$ 0.02
Common Stock Class B [Member]
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.00	$ 0.01
Diluted earnings per share (in dollars per share)	$ 0.00	$ 0.01