Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
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)	$ 7,891,000	$ 7,891,000
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	285,998,136	285,682,569
Common stock, shares outstanding	285,209,848	285,289,924
Treasury stock, common shares	788,288	392,645