Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Liabilities for Unpaid Losses, Claims and Loss Adjustment Expenses [Roll Forward]
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, gross				$ 62,562
Paid related to [Abstract]
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		$ 65,055		65,055
Reconciliation of total incurred claims to total insurance benefits and losses incurred [Abstract]
Total incurred losses				54,428	$ 50,128
Cash surrender value and matured endowments				817	694
Benefit reserve changes				1,784	925
Total insurance benefits and losses incurred		27,032	$ 26,922	57,029	51,747
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				49,556	51,200
Less: Reinsurance recoverable on unpaid losses				(9,806)	(11,639)
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net				39,750	39,561
Incurred related to [Abstract]
Current accident year				17,306	17,721
Prior accident year development	[1]			(1,090)	(990)
Total incurred				16,216	16,731
Paid related to [Abstract]
Current accident year				5,631	5,347
Prior accident years				10,065	13,518
Total paid				15,696	18,865
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		40,270	37,427	40,270	37,427
Plus: Reinsurance recoverable on unpaid losses		10,027	8,515	10,027	8,515
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		50,297	45,942	50,297	45,942
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				11,263	10,547
Less: Reinsurance recoverable on unpaid losses				(990)	0
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net				10,273	10,547
Incurred related to [Abstract]
Current accident year				33,674	30,336
Prior accident year development				587	(637)
Total incurred				34,261	29,699
Paid related to [Abstract]
Current accident year				24,301	21,370
Prior accident years				9,706	8,918
Total paid				34,007	30,288
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		10,527	9,958	10,527	9,958
Plus: Reinsurance recoverable on unpaid losses		2,746	0	2,746	0
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		13,273	9,958	13,273	9,958
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				1,743	2,123
Less: Reinsurance recoverable on unpaid losses				0	0
Beginning liabilities for unpaid losses, claims and loss adjustment expenses, net				1,743	2,123
Incurred related to [Abstract]
Current accident year				3,995	3,904
Prior accident year development				(44)	(206)
Total incurred				3,951	3,698
Paid related to [Abstract]
Current accident year				2,685	2,602
Prior accident years				1,524	1,450
Total paid				4,209	4,052
Ending liabilities for unpaid losses, claims and loss adjustment expenses, net		1,485	1,769	1,485	1,769
Plus: Reinsurance recoverable on unpaid losses		0	0	0	0
Ending liabilities for unpaid losses, claims and loss adjustment expenses, gross		$ 1,485	$ 1,769	$ 1,485	$ 1,769

[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. However, as a result, the Company generally experiences reserve redundancies when analyzing the development of prior year losses in a current period.