Segment Information (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments	2
Segment reporting, measurement differences between segment and consolidated income (loss)	The Company's Other Non-Insurance Enterprises are the only reportable difference between segments and consolidated operations.
Premiums	$ 42,464	$ 44,029
Net investment income	13,796	13,771
Realized investment gains (losses), net	5,961	(575)
Other income	185	208
Total revenue	62,406	57,433
Claims and surrenders	23,033	21,151
Increase in future policy benefit reserves	12,299	14,608
Policyholders' dividends	1,182	1,307
Total insurance benefits paid or provided	36,514	37,066
Commissions	7,884	8,959
Other general expenses	14,132	6,507
Capitalization of deferred policy acquisition costs	(4,828)	(5,963)
Amortization of deferred policy acquisition costs	6,277	7,606
Amortization of cost of customer relationships acquired	419	679
Total benefits and expenses	60,398	54,854
Income (loss) before income tax expense	2,008	2,579
Total costs to remediate IRC Section 7702 issue	10,000	5,100	$ 10,000	$ 12,300
Life Insurance Segment [Member]
Segment Reporting Information [Line Items]
Premiums	30,914	32,360
Net investment income	10,169	10,130
Realized investment gains (losses), net	5,457	(185)
Other income	183	209
Total revenue	46,723	42,514
Claims and surrenders	17,162	15,291
Increase in future policy benefit reserves	11,313	13,582
Policyholders' dividends	1,172	1,297
Total insurance benefits paid or provided	29,647	30,170
Commissions	4,373	5,228
Other general expenses	6,205	(884)
Capitalization of deferred policy acquisition costs	(3,702)	(4,640)
Amortization of deferred policy acquisition costs	5,441	6,540
Amortization of cost of customer relationships acquired	122	152
Total benefits and expenses	42,086	36,566
Income (loss) before income tax expense	4,637	5,948
Home Service Insurance Segment [Member]
Segment Reporting Information [Line Items]
Premiums	11,550	11,669
Net investment income	3,086	3,302
Realized investment gains (losses), net	484	(352)
Other income	1	(1)
Total revenue	15,121	14,618
Claims and surrenders	5,871	5,860
Increase in future policy benefit reserves	986	1,026
Policyholders' dividends	10	10
Total insurance benefits paid or provided	6,867	6,896
Commissions	3,511	3,731
Other general expenses	5,070	5,544
Capitalization of deferred policy acquisition costs	(1,126)	(1,323)
Amortization of deferred policy acquisition costs	836	1,066
Amortization of cost of customer relationships acquired	297	527
Total benefits and expenses	15,455	16,441
Income (loss) before income tax expense	(334)	(1,823)
Other Non-Insurance Enterprise [Member]
Segment Reporting Information [Line Items]
Premiums	0	0
Net investment income	541	339
Realized investment gains (losses), net	20	(38)
Other income	1	0
Total revenue	562	301
Claims and surrenders	0	0
Increase in future policy benefit reserves	0	0
Policyholders' dividends	0	0
Total insurance benefits paid or provided	0	0
Commissions	0	0
Other general expenses	2,857	1,847
Capitalization of deferred policy acquisition costs	0	0
Amortization of deferred policy acquisition costs	0	0
Amortization of cost of customer relationships acquired	0	0
Total benefits and expenses	2,857	1,847
Income (loss) before income tax expense	$ (2,295)	$ (1,546)