Summarized Quarterly Financial Data (Unaudited)
12 Months Ended
Dec. 31, 2011
Summarized Quarterly Financial Data [Abstract]  
Summarized Quarterly Financial Data (Unaudited)

17.    Summarized Quarterly Financial Data (Unaudited)

Following are summarized quarterly financial data (unaudited) for the years ended December 31, 2011 and 2010:

 

                                 
    2011  
    March 31     June 30     September 30     December 31  
    (In thousands)  

Total revenue

  $     $     $     $  

Operating loss

    (2,050     (2,226     (1,531     (2,330

Net income (loss)

    10,999       1,842       (17,606     19,816  

Net income (loss) per share, basic

  $ 0.21     $ 0.04     $ (0.29   $ 0.33  

Net income (loss) per share, diluted

  $ 0.19     $ 0.03     $ (0.29   $ 0.30  

 

                                 
    2010  
    March 31     June 30     September 30     December 31  
    (In thousands)  

Total revenue

  $ 14     $ 57     $ 5     $ 24  

Operating loss

    (3,008     (3,117     (3,875     (1,543

Net (loss) income

    (17,259     (31,573     10,082       (18,159

Net (loss) income per share, basic

  $ (0.41   $ (0.73   $ 0.21     $ (0.35

Net (loss) income per share, diluted

  $ (0.41   $ (0.73   $ 0.20     $ (0.35