Investments (Available-for-Sale Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 96,410	$ 94,497
Gross Unrealized Gains	5,996	4,800
Gross Unrealized Losses	2,030	2,588
Fair Value	100,376	96,709
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	38,378	38,245
Gross Unrealized Gains	1,157	747
Gross Unrealized Losses	1,173	1,728
Fair Value	38,362	37,264
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,212	15,324
Gross Unrealized Gains	370	157
Gross Unrealized Losses	103	224
Fair Value	14,479	15,257
Private Label Asset Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	8,866	6,029
Gross Unrealized Gains	40	24
Gross Unrealized Losses	631	380
Fair Value	8,275	5,673
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	13,933	14,654
Gross Unrealized Gains	938	869
Gross Unrealized Losses	3	47
Fair Value	14,868	15,476
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,601	17,825
Gross Unrealized Gains	744	413
Gross Unrealized Losses	10	96
Fair Value	19,335	18,142
Available-for-sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	93,990	92,077
Gross Unrealized Gains	3,249	2,210
Gross Unrealized Losses	1,920	2,475
Fair Value	95,319	91,812
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,420	2,420
Gross Unrealized Gains	2,747	2,590
Gross Unrealized Losses	110	113
Fair Value	$ 5,057	$ 4,897