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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
Mar. 31, 2012
Dec. 31, 2011
LIABILITIES AND STOCKHOLDERS' EQUITY AND NONCONTROLLING INTEREST    
Cumulative convertible preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Cumulative convertible preferred stock, shares issued (in shares) 5,980,000 5,980,000
Cumulative convertible preferred stock, shares outstanding (in shares) 178,249 178,249
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized ( in shares) 641,702,178 641,702,178
Common stock, shares issued (in shares) 34,133,506 33,888,082
Common stock, shares outstanding (in shares) 34,133,506 33,888,082