Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash dividends declared, common share		$ 0.01
Series A And B [Member]
Cash dividends declared, per preferred share		$ 0.125
Series D [Member]
Cash dividends accrued, per senior preferred share	$ 50	$ 50
Series E [Member]
Cash dividends accrued, per senior preferred share	$ 50	$ 50