Regulatory Requirements - Narrative (Details) (USD $)	0 Months Ended			0 Months Ended
	Oct. 23, 2012	May 06, 2011	Dec. 31, 2013	Sep. 12, 2012 Preferred Stock	Sep. 12, 2012 US Treasury Series T Preferred Stock	Sep. 12, 2012 US Treasury Series T-ACB Preferred Stock
Banking and Thrift [Abstract]
Proceeds from the issuance of private placement	$ 41,800,000	$ 6,400,000
Proceeds from issuance of mandatorily convertible cumulative non-voting perpetual preferred stock	45,000,000
Conversion price of convertible stock (in dollars per share)	$ 2.80
Disallowed portion of deferred tax assets, Tier 1 Capital			12,300,000
Federal Reserve Bank, average daily reserves			250,000
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Preferred Stock Sold in Public Offering					$ 36,000,000	$ 13,300,000
Conversion of Stock, Shares Converted				20,907