Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses [Roll Forward]
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, gross		$ 72,612
Paid related to [Abstract]
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		74,713
Reconciliation of total incurred claims to total insurance benefits and losses incurred [Abstract]
Total incurred losses		34,863	$ 32,367
Cash surrender value and matured endowments		360	378
Benefit reserve changes		84	427
Total insurance benefits and losses incurred		35,307	33,172
Property and Casualty Insurance Products [Member]
Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses [Roll Forward]
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, gross		49,354	47,997
Less: Reinsurance recoverable on unpaid losses		(6,428)	(7,220)
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net		42,926	40,777
Incurred related to [Abstract]
Current accident year		9,398	9,602
Prior accident year development	[1]	(355)	(425)
Total incurred		9,043	9,177
Paid related to [Abstract]
Current accident year		1,668	2,348
Prior accident years		7,310	5,976
Total paid		8,978	8,324
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		42,991	41,630
Plus: Reinsurance recoverable on unpaid losses		6,218	7,158
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		49,209	48,788
Medicare Supplement Insurance Products [Member]
Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses [Roll Forward]
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, gross		21,257	15,859
Less: Reinsurance recoverable on unpaid losses		(7,926)	(4,748)
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net		13,331	11,111
Incurred related to [Abstract]
Current accident year		22,472	17,615
Prior accident year development		974	3,343	[2]
Total incurred		23,446	20,958
Paid related to [Abstract]
Current accident year		11,125	5,873
Prior accident years		11,213	13,252
Total paid		22,338	19,125
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		14,439	12,944
Plus: Reinsurance recoverable on unpaid losses		8,958	6,535
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		23,397	19,479
Other Life and Health Insurance Products [Member]
Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses [Roll Forward]
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, gross		2,001	1,833
Less: Reinsurance recoverable on unpaid losses		0	0
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net		2,001	1,833
Incurred related to [Abstract]
Current accident year		2,494	2,516
Prior accident year development		(120)	(284)
Total incurred		2,374	2,232
Paid related to [Abstract]
Current accident year		914	998
Prior accident years		1,354	1,214
Total paid		2,268	2,212
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		2,107	1,853
Plus: Reinsurance recoverable on unpaid losses		0	0
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		$ 2,107	$ 1,853

[1] In establishing property and casualty reserves, the Company initially reserves for losses at the higher end of the reasonable range if no other value within the range is determined to be more probable. Selection of such an initial loss estimate is an attempt by management to give recognition that initial claims information received generally is not conclusive with respect to legal liability, is generally not comprehensive with respect to magnitude of loss and generally, based on historical experience, will develop more adversely as time passes and more information becomes available. Accordingly, the Company generally experiences reserve redundancies when analyzing the development of prior year losses in a current period.

[2] The prior accident year development for Medicare supplement insurance products was primarily due to influenza, the usual driver of elevated morbidity in winter, which was significantly higher than in the previous year and ultimately had an unfavorable effect on the Company's loss patterns.