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Redeemable Convertible Preferred Stock
9 Months Ended
Sep. 30, 2011
Redeemable Convertible Preferred Stock [Abstract] 
Redeemable Convertible Preferred Stock

9. REDEEMABLE CONVERTIBLE PREFERRED STOCK

A summary of redeemable convertible preferred stock issued and outstanding as of December 31, 2010 is as follows (in thousands, except share and per share amounts):

 

     Shares
Authorized		      Shares
Issued		      Liquidation
Preference
and Issue
Price		      Liquidation
Amount		      Carrying
Value		  

Series A

      7,810,402         7,746,297       $ 0.39       $ 3,021       $ 2,991   

Series B

      8,902,946         8,581,037         1.01         8,663         8,645   

Series C

      11,431,131         11,431,131         5.04         57,585         56,943   

Series D

      6,775,661         6,775,660         8.86         60,000         59,734   

All shares of the Company's redeemable convertible preferred stock automatically converted into shares of common stock upon the closing of the Company's initial public offering in June 2011. Therefore, the Company had no redeemable convertible preferred stock outstanding as of September 30, 2011.