Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Series A Preferred Stock dividends, per share	$ 0.10	$ 0.10

Aggregate dividends declared during the period for each share of preferred stock outstanding.

No definition available.

Name:	us-gaap_PreferredStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration