Dividend and Interest Restrictions (Details) (USD $)	6 Months Ended				0 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 20, 2014 item	Dec. 31, 2013	Aug. 13, 2009	Jun. 20, 2014 Series A Preferred Stock [Member]	Aug. 13, 2009 Series A Preferred Stock [Member]	Jun. 30, 2014 Series A Preferred Stock [Member]	Jul. 02, 2014 Series A Preferred Stock [Member]	Jun. 20, 2014 Series A Preferred Stock [Member]	Feb. 20, 2009 Series A Preferred Stock [Member]
Class of Stock [Line Items]
Series A Preferred stock on which quarterly dividend suspended						$ 30,400,000
Trust preferred securities with suspended interest payments	25,774,000		25,774,000	25,800,000
Preferred stock dividend in arrears	9,000,000						9,000,000
Number of institutions under priced auction		6
Preferred stock, shares issued (in shares)	30,407		30,407						30,407	30,407
Auction price (in dollars per share)									$ 1,207.11
Shares allocated for repurchase (in shares)					11,551
Dividends in arrears eliminated								$ 3,500,000