Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) (USD $)
Jun. 30, 2011
Dec. 31, 2010
Consolidated Balance Sheets    
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 22,003,912 21,579,655
Common Stock, shares outstanding 22,003,912 21,579,655