Investments (Schedule of Continuous Losses) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 22,101	$ 6,187
Less than 12 Months, Gross Unrealized Losses	968	121
12 Months or Longer, Fair Value	3,478	2,022
12 Months or Longer, Gross Unrealized Losses	561	515
Total Fair Value	25,579	8,209
Total Gross Unrealized Losses	1,529	636
Total Securities in a Loss Position	62	20
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	10,246	2,226
Less than 12 Months, Gross Unrealized Losses	380	31
12 Months or Longer, Fair Value	974	963
12 Months or Longer, Gross Unrealized Losses	37	49
Total Fair Value	11,220	3,189
Total Gross Unrealized Losses	417	80
Total Securities in a Loss Position	25	7
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	4,608	2,904
Less than 12 Months, Gross Unrealized Losses	287	77
12 Months or Longer, Fair Value	856	165
12 Months or Longer, Gross Unrealized Losses	31	8
Total Fair Value	5,464	3,069
Total Gross Unrealized Losses	318	85
Total Securities in a Loss Position	16	8
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	498	206
Less than 12 Months, Gross Unrealized Losses	10	8
12 Months or Longer, Fair Value	0	65
12 Months or Longer, Gross Unrealized Losses	0	1
Total Fair Value	498	271
Total Gross Unrealized Losses	10	9
Total Securities in a Loss Position	3	2
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	2,824	356
Less than 12 Months, Gross Unrealized Losses	113	3
12 Months or Longer, Fair Value	342	0
12 Months or Longer, Gross Unrealized Losses	15	0
Total Fair Value	3,166	356
Total Gross Unrealized Losses	128	3
Total Securities in a Loss Position	9	1
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	3,925	495
Less than 12 Months, Gross Unrealized Losses	178	2
12 Months or Longer, Fair Value	449	0
12 Months or Longer, Gross Unrealized Losses	49	0
Total Fair Value	4,374	495
Total Gross Unrealized Losses	227	2
Total Securities in a Loss Position	8	1
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Gross Unrealized Losses	0	0
12 Months or Longer, Fair Value	857	829
12 Months or Longer, Gross Unrealized Losses	429	457
Total Fair Value	857	829
Total Gross Unrealized Losses	$ 429	$ 457
Total Securities in a Loss Position	1	1