Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Premiums:
Life insurance	$ 44,502	$ 45,898	$ 127,795	$ 133,058
Accident and health insurance	350	323	1,018	915
Property insurance	1,157	1,208	3,464	3,615
Net investment income	15,039	13,587	44,150	41,169
Realized investment gains (losses), net	72	(498)	3,164	(1,251)
Other income	347	643	1,148	930
Total revenue	61,467	61,161	180,739	178,436
Insurance benefits paid or provided:
Claims and surrenders	28,751	25,076	78,808	66,844
Increase in future policy benefit reserves	6,409	1,653	28,180	32,816
Policyholders' dividends	1,560	1,595	4,165	4,516
Total insurance benefits paid or provided	36,720	28,324	111,153	104,176
Commissions	8,879	8,656	25,147	26,284
Other general expenses	11,530	12,402	37,611	33,375
Capitalization of deferred policy acquisition costs	(5,984)	(5,561)	(16,224)	(17,164)
Amortization of deferred policy acquisition costs	7,835	11,412	21,043	26,218
Amortization of cost of customer relationships acquired	355	366	1,192	1,517
Total benefits and expenses	59,335	55,599	179,922	174,406
Income (loss) before federal income tax	2,132	5,562	817	4,030
Federal income tax expense (benefit)	86	12,671	7,138	13,660
Net income (loss)	2,046	(7,109)	(6,321)	(9,630)
Unrealized gains (losses) on available-for-sale debt securities:
Unrealized holding gains (losses) arising during period	24,201	(2,236)	84,222	(32,663)
Reclassification adjustments for losses (gains) included in net income	(53)	656	(30)	1,002
Unrealized gains (losses) on available-for-sale debt securities, net	24,148	(1,580)	84,192	(31,661)
Income tax expense (benefit) on unrealized gains (losses) on available-for-sale securities	1,627	454	5,815	(5,852)
Other comprehensive income (loss)	22,521	(2,034)	78,377	(25,809)
Comprehensive income (loss)	$ 24,567	$ (9,143)	$ 72,056	$ (35,439)
Common Stock Class A [Member]
Earnings Per Share [Abstract]
Basic and diluted earnings (loss) per share (in dollars per share)	$ 0.04	$ (0.14)	$ (0.13)	$ (0.19)
Common Stock Class B [Member]
Earnings Per Share [Abstract]
Basic and diluted earnings (loss) per share (in dollars per share)	$ 0.02	$ (0.07)	$ (0.06)	$ (0.10)