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CONSOLIDATED BALANCE SHEETS (unaudited) (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Statement Of Financial Position [Abstract]    
Convertible preferred stock, series A, par value (in dollars per share) $ 0.01 $ 0.01
Convertible preferred stock, series A, shares authorized 200,000 200,000
Convertible preferred stock, series A, shares issued 162,000 162,000
Convertible preferred stock, series A, shares outstanding 162,000 162,000
Convertible preferred stock, series A, redemption value (in dollars) $ 162,000 $ 162,000
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 135,643,647 135,637,932
Common stock, shares outstanding 135,643,647 135,637,932