Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Premiums:
Life insurance	$ 40,185	$ 42,313	$ 80,131	$ 83,293
Accident and health insurance	248	345	509	668
Property insurance	1,063	1,146	2,173	2,307
Net investment income	14,915	15,315	30,084	29,111
Realized investment gains (losses), net	1,448	(2,869)	142	3,092
Other income	482	616	1,024	801
Total revenue	58,341	56,866	114,063	119,272
Insurance benefits paid or provided:
Claims and surrenders	27,754	27,024	54,203	50,057
Increase in future policy benefit reserves	8,237	9,472	17,708	21,771
Policyholders' dividends	1,328	1,423	2,561	2,605
Total insurance benefits paid or provided	37,319	37,919	74,472	74,433
Commissions	6,714	8,384	14,567	16,268
Other general expenses	11,139	11,949	22,612	26,081
Capitalization of deferred policy acquisition costs	(3,731)	(5,412)	(8,740)	(10,240)
Amortization of deferred policy acquisition costs	6,061	6,931	12,180	13,208
Amortization of cost of customer relationships acquired	401	418	769	837
Total benefits and expenses	57,903	60,189	115,860	120,587
Income (loss) before federal income tax	438	(3,323)	(1,797)	(1,315)
Federal income tax expense (benefit)	1,465	1,242	2,814	7,052
Net income (loss)	(1,027)	(4,565)	(4,611)	(8,367)
Unrealized gains (losses) on available-for-sale debt securities:
Unrealized holding gains (losses) arising during period	80,508	31,220	37,579	60,021
Reclassification adjustments for losses (gains) included in net income	(87)	(81)	45	23
Unrealized gains (losses) on available-for-sale debt securities, net	80,421	31,139	37,624	60,044
Income tax expense (benefit) on unrealized gains (losses) on available-for-sale securities	5,774	2,163	3,047	4,188
Other comprehensive income (loss)	74,647	28,976	34,577	55,856
Comprehensive income (loss)	$ 73,620	$ 24,411	$ 29,966	$ 47,489
Common Stock Class A [Member]
Earnings Per Share [Abstract]
Basic and diluted earnings (loss) per share (in dollars per share)	$ (0.02)	$ (0.09)	$ (0.09)	$ (0.17)
Common Stock Class B [Member]
Earnings Per Share [Abstract]
Basic and diluted earnings (loss) per share (in dollars per share)	$ (0.01)	$ (0.04)	$ (0.05)	$ (0.08)