Investments Reconciliation, Investments by Category (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 347,021	$ 288,776
Available-for-sale Securities, Gross Unrealized Gains	6,273	3,513
Available-for-sale Securities, Gross Unrealized Losses	1,698	3,363
Available-for-sale Securities, Debt Securities	329,120	273,024
Available-for-sale Securities, Equity Securities	22,176	15,602
Other Long-term Investments	300	300
Total investments	351,596	288,926
U.S. government and agency securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	123,666	98,621
Available-for-sale Securities, Gross Unrealized Gains	101	28
Available-for-sale Securities, Gross Unrealized Losses	822	1,169
Available-for-sale Securities, Debt Securities	122,945	97,480
Foreign Government Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	3,278	3,287
Available-for-sale Securities, Gross Unrealized Gains	41	0
Available-for-sale Securities, Gross Unrealized Losses	0	60
Available-for-sale Securities, Debt Securities	3,319	3,227
States, municipalities and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	80,077	45,556
Available-for-sale Securities, Gross Unrealized Gains	1,477	654
Available-for-sale Securities, Gross Unrealized Losses	227	433
Available-for-sale Securities, Debt Securities	81,327	45,777
Public Utility, Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	9,059	9,103
Available-for-sale Securities, Gross Unrealized Gains	229	122
Available-for-sale Securities, Gross Unrealized Losses	41	92
Available-for-sale Securities, Debt Securities	9,247	9,133
All Other Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	110,839	118,084
Available-for-sale Securities, Gross Unrealized Gains	1,442	792
Available-for-sale Securities, Gross Unrealized Losses	404	1,469
Available-for-sale Securities, Debt Securities	111,877	117,407
Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	413
Available-for-sale Securities, Gross Unrealized Gains	0
Available-for-sale Securities, Gross Unrealized Losses	8
Available-for-sale Securities, Debt Securities	405
Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	327,332	274,651
Available-for-sale Securities, Gross Unrealized Gains	3,290	1,596
Available-for-sale Securities, Gross Unrealized Losses	1,502	3,223
Available-for-sale Securities, Debt Securities	329,120	273,024
Public Utility, Equities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	996	804
Available-for-sale Securities, Gross Unrealized Gains	62	23
Available-for-sale Securities, Gross Unrealized Losses	8	20
Available-for-sale Securities, Equity Securities	1,050	807
Other Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	17,660	12,749
Available-for-sale Securities, Gross Unrealized Gains	2,918	1,894
Available-for-sale Securities, Gross Unrealized Losses	185	97
Available-for-sale Securities, Equity Securities	20,393	14,546
Nonredeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	733	272
Available-for-sale Securities, Gross Unrealized Gains	3	0
Available-for-sale Securities, Gross Unrealized Losses	3	23
Available-for-sale Securities, Equity Securities	733	249
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	19,389	13,825
Available-for-sale Securities, Gross Unrealized Gains	2,983	1,917
Available-for-sale Securities, Gross Unrealized Losses	196	140
Available-for-sale Securities, Equity Securities	22,176	15,602
Other Long-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	300	300
Available-for-sale Securities, Gross Unrealized Gains	0	0
Available-for-sale Securities, Gross Unrealized Losses	0	0
Other Long-term Investments	$ 300	$ 300