Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table sets forth our assets and liabilities that are measured at fair value on a recurring basis as of the date indicated.

	December 31, 2016
Available-for-sale investments	Level 1		Level 2	Level 3	Total Fair Value
	(In thousands)
Financial assets:
Fixed maturities:
U.S. Treasury and U.S. Government-sponsored enterprises	$	12,190	8,502	—	20,692
States and political subdivisions	—		573,274	—	573,274
Corporate	—		285,099	—	285,099
Commercial mortgage-backed	—		—	51	51
Residential mortgage-backed	—		2,426	—	2,426
Foreign governments	—		126	—	126
Total fixed maturities	12,190		869,427	51	881,668
Equity securities:
Stock mutual funds	2,946		—	—	2,946
Bond mutual funds	14,197		—	—	14,197
Common stock	25		—	—	25
Redeemable preferred stock	991		—	—	991
Total equity securities	18,159		—	—	18,159
Total financial assets	$	30,349	869,427	51	899,827

	December 31, 2015
Available-for-sale investments	Level 1		Level 2	Level 3	Total Fair Value
	(In thousands)
Financial assets:
Fixed maturities:
U.S. Treasury and U.S. Government-sponsored enterprises	$	12,592	20,780	—	33,372
States and political subdivisions	—		483,049	—	483,049
Corporate	—		216,081	—	216,081
Commercial mortgage-backed	—		—	145	145
Residential mortgage-backed	—		2,870	—	2,870
Foreign governments	—		131	—	131
Total fixed maturities	12,592		722,911	145	735,648
Equity securities:
Stock mutual funds	3,033		—	—	3,033
Bond mutual funds	18,504		—	—	18,504
Common stock	43		—	—	43
Redeemable preferred stock	1,858		—	—	1,858
Total equity securities	23,438		—	—	23,438
Total financial assets	$	36,030	722,911	145	759,086

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following table presents additional information about fixed maturity securities measured at fair value on a recurring basis and for which we have utilized significant unobservable (Level 3) inputs to determine fair value:

	December 31,
	2016			2015
	(In thousands)
Beginning Balance at January 1,	$	145		231
Total realized and unrealized gains (losses)
Included in net income	—			—
Included in other comprehensive income	(4		)	(2	)
Principal paydowns	(90		)	(84	)
Transfer in and (out) of Level 3	—			—
Ending Balance at December 31,	$	51		145

Fair Value, by Balance Sheet Grouping [Table Text Block]

The carrying amount and fair value for the financial assets and liabilities on the consolidated balance sheets at each year-end were as follows:

	December 31, 2016			December 31, 2015
	Carrying Value		Fair Value	Carrying Value	Fair Value
	(In thousands)			(In thousands)
Financial assets:
Fixed maturities, held-to-maturity	$	247,004	252,545	259,953	264,966
Mortgage loans	232		269	594	617
Policy loans	66,672		66,672	60,166	60,166
Short-term investments	508		508	251	251
Cash and cash equivalents	35,510		35,510	82,827	82,827
Financial liabilities:
Annuities - investment contracts	$	50,952	52,173	47,222	46,905