Regulatory Requirements - Narrative (Details) (USD $)	0 Months Ended		1 Months Ended			0 Months Ended
	Oct. 23, 2012	May 06, 2011	Aug. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Sep. 12, 2012 Preferred Stock	Sep. 12, 2012 US Treasury Series T Preferred Stock	Sep. 12, 2012 US Treasury Series T-ACB Preferred Stock	Dec. 31, 2012 Sidus
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				21,100,000	68,000
Dividends and interest paid on TARP Preferred Stock and trust preferred securities			4,400,000
Tier 1 Leverage Ratio, commited to regulators				0.08
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
Minimum net worth required for compliance				1,000,000					1,000,000
Adjusted net worth				$ 36,300,000					$ 18,401,847