Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Held-to-maturity Securities [Line Items]
Carrying value	$ 0		$ 0		$ 14,798
Cost or amortized cost	0		0		14,798
Fair value	0		0		14,798
Schedule of Trading Securities and Other Trading Assets [Line Items]
Carrying Value	0		0		0
Cost or amortized cost	0	307	0	307	0
Fair Value	0	305	0	305	0
Gross unrealized gains (losses) on investment securities held to maturity [Abstract]
Gross unrealized gains (losses)	0		0		0
Realized gains (losses) on investment securities [Abstract]
Net sale proceeds	0	3	956	9
Cost basis	0	0	936	0
Realized gains (losses)	0	3	20	9
Unrealized gains (losses) on investment securities [Abstract]
Cost basis	0	307	0	307	0
Current value	0	305	0	305	0
Unrealized gains (losses)	0	(2)	0	(2)
Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Carrying Value	0		0		0
Cost or amortized cost	0		0		0
Fair Value	0		0		0
Unrealized gains (losses) on investment securities [Abstract]
Cost basis	0		0		0
Current value	0		0		0
US Treasury Bills [Member]
Held-to-maturity Securities [Line Items]
Carrying value	0		0		14,798
Cost or amortized cost	0		0		14,798
Fair value	$ 0		$ 0		$ 14,798