Investments Including Short Term And Cash And Cash Equivalents [Table Text Block]

The Company invests primarily in fixed maturity securities, which totaled 89.7% of total cash, cash equivalents and investments at March 31, 2017.



	March 31, 2017			December 31, 2016
	Carrying Value		% of Total Carrying Value	Carrying Value		% of Total Carrying Value
	($ In thousands)
Fixed maturity securities	$	1,151,992	89.7	$	1,128,672	89.8
Equity securities	16,090		1.3	18,159		1.5
Mortgage loans	200		—	232		0.0
Policy loans	67,616		5.3	66,672		5.3
Real estate and other long-term investments	5,932		0.5	7,896		0.6
Short-term investments	502		—	508		—
Cash and cash equivalents	41,151		3.2	35,510		2.8
Total cash, cash equivalents and investments	$	1,283,483	100.0	$	1,257,649	100.0

Unrealized Gain (Loss) on Investments [Table Text Block]

The following tables represent the cost, gross unrealized gains and losses and fair value for fixed maturities and equity securities as of the periods indicated.



	March 31, 2017
	Cost or Amortized Cost		Gross Unrealized Gains	Gross Unrealized Losses	Fair Value
	(In thousands)
Fixed maturities:
Available-for-sale:
U.S. Treasury securities	$	9,912	2,240	—	12,152
U.S. Government-sponsored enterprises	7,608		917	—	8,525
States and political subdivisions	571,591		16,091	3,995	583,687
Foreign governments	103		23	—	126
Corporate	289,718		13,355	2,681	300,392
Commercial mortgage-backed	27		—	—	27
Residential mortgage-backed	2,143		166	2	2,307
Total available-for-sale securities	881,102		32,792	6,678	907,216
Held-to-maturity securities:
U.S. Government-sponsored enterprises	2,001		9	—	2,010
States and political subdivisions	221,772		7,108	636	228,244
Corporate	21,003		1,082	639	21,446
Total held-to-maturity securities	244,776		8,199	1,275	251,700
Total fixed maturities	$	1,125,878	40,991	7,953	1,158,916

Short-term investments	$	502	—	—	502

Equity securities:
Stock mutual funds	$	2,867	162	—	3,029
Bond mutual funds	12,071		357	96	12,332
Common stock	22		1	—	23
Redeemable preferred stock	660		46	—	706
Total equity securities	$	15,620	566	96	16,090



	December 31, 2016
	Cost or Amortized Cost		Gross Unrealized Gains	Gross Unrealized Losses	Fair Value
	(In thousands)
Fixed maturities:
Available-for-sale securities:
U.S. Treasury securities	$	9,929	2,261	—	12,190
U.S. Government-sponsored enterprises	7,639		863	—	8,502
States and political subdivisions	563,279		15,017	5,022	573,274
Foreign governments	103		23	—	126
Corporate	277,226		12,095	4,222	285,099
Commercial mortgage-backed	50		1	—	51
Residential mortgage-backed	2,247		181	2	2,426
Total available-for-sale securities	860,473		30,441	9,246	881,668
Held-to-maturity securities:
U.S. Government-sponsored enterprises	2,003		28	—	2,031
States and political subdivisions	223,966		6,916	1,599	229,283
Corporate	21,035		888	692	21,231
Total held-to-maturity securities	247,004		7,832	2,291	252,545
Total fixed maturity securities	$	1,107,477	38,273	11,537	1,134,213

Short-term investments	$	508	—	—	508

Equity securities:
Stock mutual funds	$	2,867	79	—	2,946
Bond mutual funds	14,040		265	108	14,197
Common stock	39		3	17	25
Redeemable preferred stock	819		174	2	991
Total equity securities	$	17,765	521	127	18,159

Schedule of Unrealized Loss on Investments [Table Text Block]

The following tables present the fair values and gross unrealized losses of fixed maturities and equity securities that have remained in a continuous unrealized loss position for the periods indicated.



	March 31, 2017
	Less than 12 months				Greater than 12 months			Total
	Fair Value		Unrealized Losses	# of Securities	Fair Value	Unrealized Losses	# of Securities	Fair Value	Unrealized Losses	# of Securities
	(In thousands, except for # of securities)
Fixed maturities:
Available-for-sale securities:
States and political subdivisions	$	172,292	2,550	147	8,064	1,445	8	180,356	3,995	155
Corporate	78,715		2,205	64	1,886	476	7	80,601	2,681	71
Residential mortgage-backed	109		1	3	104	1	2	213	2	5
Total available-for-sale securities	251,116		4,756	214	10,054	1,922	17	261,170	6,678	231
Held-to-maturity securities:
States and political subdivisions	35,518		601	40	510	35	1	36,028	636	41
Corporate	—		—	—	2,206	639	2	2,206	639	2
Total held-to-maturity securities	35,518		601	40	2,716	674	3	38,234	1,275	43
Total fixed maturities	$	286,634	5,357	254	12,770	2,596	20	299,404	7,953	274
Equity securities:
Bond mutual funds	$	8,202	96	1	—	—	—	8,202	96	1
Common stocks	—		—	—	—	—	—	—	—	—
Redeemable preferred stocks	101		—	1	—	—	—	101	—	1
	$	8,303	96	2	—	—	—	8,303	96	2

As of March 31, 2017, the Company had 17 available-for-sale fixed maturity securities and 3 held-to-maturity fixed maturity securities that were in an unrealized loss position for greater than 12 months. There were no common stock holdings in an unrealized loss position for greater than 12 months as of March 31, 2017.



	December 31, 2016
	Less than 12 months				Greater than 12 months			Total
	Fair Value		Unrealized Losses	# of Securities	Fair Value	Unrealized Losses	# of Securities	Fair Value	Unrealized Losses	# of Securities
	(In thousands, except for # of securities)
Fixed maturities:
Available-for-sale securities:
States and political subdivisions	$	202,788	3,513	184	8,018	1,509	8	210,806	5,022	192
Corporate	91,527		3,578	70	6,102	644	8	97,629	4,222	78
Residential mortgage-backed	116		1	4	105	1	2	221	2	6
Total available-for-sale securities	294,431		7,092	258	14,225	2,154	18	308,656	9,246	276
Held-to-maturity securities:
States and political subdivisions	43,659		1,562	47	509	37	1	44,168	1,599	48
Corporate	3,587		12	3	2,171	680	2	5,758	692	5
Total held-to-maturity securities	47,246		1,574	50	2,680	717	3	49,926	2,291	53
Total fixed maturities	$	341,677	8,666	308	16,905	2,871	21	358,582	11,537	329
Equity securities:
Bond mutual funds	$	10,160	108	2	—	—	—	10,160	108	2
Common stock	—		—	—	—	17	1	—	17	1
Redeemable preferred stocks	201		2	2	—	—	—	201	2	2
Total equities	$	10,361	110	4	—	17	1	10,361	127	5

Schedule of Realized Gain (Loss) [Table Text Block]

The Company uses the specific identification method of the individual security to determine the cost basis used in the calculation of realized gains and losses related to security sales.



	Fixed Maturities, Available-for-Sale			Equity Securities
	Three Months Ended			Three Months Ended
	March 31,			March 31,
	2017		2016	2017	2016
	(In thousands)
Proceeds	$	508	—	1,940	—
Gross realized gains	$	6	—	—	—
Gross realized losses	$	—	—	30	—

The Company uses the specific identification method of the individual security to determine the cost basis used in the calculation of realized gains and losses related to security sales.



	Fixed Maturities, Available-for-Sale			Equity Securities
	Three Months Ended			Three Months Ended
	March 31,			March 31,
	2017		2016	2017	2016
	(In thousands)
Proceeds	$	508	—	1,940	—
Gross realized gains	$	6	—	—	—
Gross realized losses	$	—	—	30	—

Investments Classified by Contractual Maturity Date [Table Text Block]

The amortized cost and fair value of fixed maturity securities at March 31, 2017 by contractual maturity are shown in the table below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date have been reflected based upon final stated maturity.



	March 31, 2017
	Amortized Cost		Fair Value
	(In thousands)
Available-for-sale securities:
Due in one year or less	$	50,405	50,885
Due after one year through five years	101,885		104,873
Due after five years through ten years	119,041		126,159
Due after ten years	609,771		625,299
Total available-for-sale securities	881,102		907,216
Held-to-maturity securities:
Due in one year or less	2,526		2,543
Due after one year through five years	59,799		62,061
Due after five years through ten years	40,591		42,255
Due after ten years	141,860		144,841
Total held-to-maturity securities	244,776		251,700
Total fixed maturities	$	1,125,878	1,158,916