Investments (Held-to-Maturity Securities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 772	$ 812
Held-to-maturity securities, unrealized gains	49	41
Held-to-maturity securities, unrealized losses	0	0
Fair Value	821	853
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	676	706
Held-to-maturity securities, unrealized gains	43	34
Held-to-maturity securities, unrealized losses	0	0
Fair Value	719	740
US Treasury Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	96	106
Held-to-maturity securities, unrealized gains	6	7
Held-to-maturity securities, unrealized losses	0	0
Fair Value	$ 102	$ 113