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Sale Of Common Shares And Issuance Of Common Stock Warrants | 6 Months Ended
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Jun. 30, 2012
Sale Of Common Shares And Issuance Of Common Stock Warrants [Abstract] |
Sale Of Common Shares And Issuance Of Common Stock Warrants | Sale of Common Shares and Issuance of Common Stock Warrants There were no sales of common shares or issuance of common stock warrants during the six months ended June 30, 2012 or June 30, 2011. Outstanding as of June 30, 2011 were 35,992 Series B Common Share Warrants which were issued as part of the registered direct public offering completed on December 10, 2010. The Series B Common Share Warrants had an exercise price of $76.41. The Series B Common Share Warrants were not exercised and expired on December 20, 2011.

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