Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Premiums:
Life insurance	$ 39,946	$ 40,980
Accident and health insurance	261	323
Property insurance	1,110	1,161
Net investment income	15,169	13,796
Realized investment gains (losses), net	(1,306)	5,961
Other income	542	185
Total revenue	55,722	62,406
Insurance benefits paid or provided:
Claims and surrenders	26,449	23,033
Increase in future policy benefit reserves	9,471	12,299
Policyholders' dividends	1,233	1,182
Total insurance benefits paid or provided	37,153	36,514
Commissions	7,853	7,884
Other general expenses	11,473	14,132
Capitalization of deferred policy acquisition costs	(5,009)	(4,828)
Amortization of deferred policy acquisition costs	6,119	6,277
Amortization of cost of customer relationships acquired	368	419
Total benefits and expenses	57,957	60,398
Income (loss) before federal income tax	(2,235)	2,008
Federal income tax expense (benefit)	1,349	5,810
Net income (loss)	(3,584)	(3,802)
Unrealized gains (losses) on available-for-sale debt securities:
Unrealized holding gains (losses) arising during period	(42,929)	28,801
Reclassification adjustments for losses (gains) included in net income	132	104
Unrealized gains (losses) on available-for-sale debt securities, net	(42,797)	28,905
Income tax expense (benefit) on unrealized gains (losses) on available-for-sale securities	(2,727)	2,025
Other comprehensive income (loss)	(40,070)	26,880
Comprehensive income (loss)	$ (43,654)	$ 23,078
Common Stock Class A [Member]
Earnings Per Share [Abstract]
Basic and diluted earnings (loss) per share (in dollars per share)	$ (0.07)	$ (0.08)
Common Stock Class B [Member]
Earnings Per Share [Abstract]
Basic and diluted earnings (loss) per share (in dollars per share)	$ (0.04)	$ (0.04)