Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Held-to-maturity Securities [Line Items]
Carrying value	$ 14,798	$ 79,787
Cost or amortized cost	14,798	79,787
Fair value	14,798	79,794
Schedule of Trading Securities and Other Trading Assets [Line Items]
Carrying Value	0	0
Cost or amortized cost	0	0
Fair Value	0	0
Gross unrealized gains (losses) on investment securities held to maturity [Abstract]
Gross unrealized gains (losses)	0	7
Realized gains (losses) on investment securities [Abstract]
Net sale proceeds	817	931
Less: Cost basis	778	893
Realized gains (losses)	39	38
Unrealized gains (losses) on investment securities [Abstract]
Cost basis	0	0
Current value	0	0
Unrealized gains (losses)	0	0
Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Carrying Value	0	0
Cost or amortized cost	0	0
Fair Value	0	0
Unrealized gains (losses) on investment securities [Abstract]
Cost basis	0	0
Current value	0	0
US Treasury Bills [Member]
Held-to-maturity Securities [Line Items]
Carrying value	14,798	79,787
Cost or amortized cost	14,798	79,787
Fair value	$ 14,798	$ 79,794