Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses [Roll Forward]
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, gross				$ 65,689
Paid related to [Abstract]
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		$ 71,816		71,816
Reconciliation of total incurred claims to total insurance benefits and losses incurred [Abstract]
Total incurred losses				95,375	$ 83,454
Cash surrender value and matured endowments				1,057	1,167
Benefit reserve changes				2,046	2,825
Total insurance benefits and losses incurred		33,087	$ 30,417	98,478	87,446
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				47,997	49,556
Less: Reinsurance recoverable on unpaid losses				(7,220)	(9,806)
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net				40,777	39,750
Incurred related to [Abstract]
Current accident year				30,339	27,359
Prior accident year development	[1]			(1,795)	(1,480)
Total incurred				28,544	25,879
Paid related to [Abstract]
Current accident year				10,716	9,858
Prior accident years				15,693	13,720
Total paid				26,409	23,578
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		42,912	42,051	42,912	42,051
Plus: Reinsurance recoverable on unpaid losses		6,928	9,455	6,928	9,455
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		49,840	51,506	49,840	51,506
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				15,859	11,263
Less: Reinsurance recoverable on unpaid losses				(4,748)	(990)
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net				11,111	10,273
Incurred related to [Abstract]
Current accident year				59,356	50,733
Prior accident year development				817	720
Total incurred				60,173	51,453
Paid related to [Abstract]
Current accident year				46,734	40,801
Prior accident years				11,594	10,445
Total paid				58,328	51,246
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		12,956	10,480	12,956	10,480
Plus: Reinsurance recoverable on unpaid losses		7,340	3,640	7,340	3,640
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		20,296	14,120	20,296	14,120
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				1,833	1,743
Less: Reinsurance recoverable on unpaid losses				0	0
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net				1,833	1,743
Incurred related to [Abstract]
Current accident year				6,729	6,226
Prior accident year development				(71)	(104)
Total incurred				6,658	6,122
Paid related to [Abstract]
Current accident year				5,148	4,807
Prior accident years				1,663	1,500
Total paid				6,811	6,307
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		1,680	1,558	1,680	1,558
Plus: Reinsurance recoverable on unpaid losses		0	0	0	0
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		$ 1,680	$ 1,558	$ 1,680	$ 1,558

[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.