Investments (Schedule of Continuous Losses) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 21,566	$ 6,187
Less than 12 Months, Gross Unrealized Losses	1,194	121
12 Months or Longer, Fair Value	5,033	2,022
12 Months or Longer, Gross Unrealized Losses	779	515
Total Fair Value	26,599	8,209
Total Gross Unrealized Losses	1,973	636
Total Securities in a Loss Position	63	20
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	10,133	2,226
Less than 12 Months, Gross Unrealized Losses	404	31
12 Months or Longer, Fair Value	1,561	963
12 Months or Longer, Gross Unrealized Losses	103	49
Total Fair Value	11,694	3,189
Total Gross Unrealized Losses	507	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	3,250	2,904
Less than 12 Months, Gross Unrealized Losses	337	77
12 Months or Longer, Fair Value	1,879	165
12 Months or Longer, Gross Unrealized Losses	129	8
Total Fair Value	5,129	3,069
Total Gross Unrealized Losses	466	85
Total Securities in a Loss Position	17	8
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	178	206
Less than 12 Months, Gross Unrealized Losses	2	8
12 Months or Longer, Fair Value	0	65
12 Months or Longer, Gross Unrealized Losses	0	1
Total Fair Value	178	271
Total Gross Unrealized Losses	2	9
Total Securities in a Loss Position	1	2
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	2,855	356
Less than 12 Months, Gross Unrealized Losses	192	3
12 Months or Longer, Fair Value	322	0
12 Months or Longer, Gross Unrealized Losses	34	0
Total Fair Value	3,177	356
Total Gross Unrealized Losses	226	3
Total Securities in a Loss Position	8	1
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	5,150	495
Less than 12 Months, Gross Unrealized Losses	259	2
12 Months or Longer, Fair Value	409	0
12 Months or Longer, Gross Unrealized Losses	89	0
Total Fair Value	5,559	495
Total Gross Unrealized Losses	348	2
Total Securities in a Loss Position	11	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	862	829
12 Months or Longer, Gross Unrealized Losses	424	457
Total Fair Value	862	829
Total Gross Unrealized Losses	$ 424	$ 457
Total Securities in a Loss Position	1	1