Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Preferred stock, aggregate shares authorized	5,000,000	5,000,000
Series B preferred stock, par value (in Dollars per share) (in Dollars per share)	$ 0.25	$ 0.25
Series B preferred stock, shares issued	157,816	157,816
Series B preferred stock, shares outstanding	157,816	157,816
Series B preferred stock, liquidation preference (in Dollars) (in Dollars)	$ 7,891	$ 7,891
Common stock, par value (in Dollars per share) (in Dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized	500,000,000	400,000,000
Common stock, shares issued	286,001,512	285,998,136
Common stock, shares outstanding	285,163,224	285,209,848
Treasury stock, common shares	838,288	788,288