Investments (Available-for-Sale Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 98,639	$ 94,497
Gross Unrealized Gains	6,806	4,800
Gross Unrealized Losses	1,128	2,588
Fair Value	104,317	96,709
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,660	38,245
Gross Unrealized Gains	1,571	747
Gross Unrealized Losses	482	1,728
Fair Value	41,749	37,264
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,379	15,324
Gross Unrealized Gains	368	157
Gross Unrealized Losses	62	224
Fair Value	12,685	15,257
Private Label Asset Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	8,765	6,029
Gross Unrealized Gains	44	24
Gross Unrealized Losses	507	380
Fair Value	8,302	5,673
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,612	14,654
Gross Unrealized Gains	951	869
Gross Unrealized Losses	1	47
Fair Value	15,562	15,476
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	19,803	17,825
Gross Unrealized Gains	953	413
Gross Unrealized Losses	10	96
Fair Value	20,746	18,142
Available-for-sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	96,219	92,077
Gross Unrealized Gains	3,887	2,210
Gross Unrealized Losses	1,062	2,475
Fair Value	99,044	91,812
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,420	2,420
Gross Unrealized Gains	2,919	2,590
Gross Unrealized Losses	66	113
Fair Value	$ 5,273	$ 4,897

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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