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Consolidated Balance Sheets (Parentheticals) - $ / shares
Sep. 30, 2016
Dec. 31, 2015
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 34,023,850 34,023,850
Common stock, shares outstanding (in shares) 33,467,893 33,467,893