Investments (Available-for-Sale Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 89,190	$ 86,444
Gross Unrealized Gains	5,193	6,288
Gross Unrealized Losses	1,200	851
Fair Value	93,183	91,881
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	35,201	37,299
Gross Unrealized Gains	1,052	1,773
Gross Unrealized Losses	845	405
Fair Value	35,408	38,667
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,669	12,691
Gross Unrealized Gains	279	214
Gross Unrealized Losses	62	153
Fair Value	14,886	12,752
Private Label Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,162	1,261
Gross Unrealized Gains	36	38
Gross Unrealized Losses	113	3
Fair Value	6,085	1,296
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,916	14,919
Gross Unrealized Gains	888	993
Gross Unrealized Losses	24	13
Fair Value	15,780	15,899
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	15,822	17,854
Gross Unrealized Gains	570	525
Gross Unrealized Losses	22	107
Fair Value	16,370	18,272
Available-for-sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	86,770	84,024
Gross Unrealized Gains	2,825	3,543
Gross Unrealized Losses	1,066	681
Fair Value	88,529	86,886
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,420	2,420
Gross Unrealized Gains	2,368	2,745
Gross Unrealized Losses	134	170
Fair Value	$ 4,654	$ 4,995