Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v2.4.0.6
Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2011
Dec. 31, 2010
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 11,062,188 1,205,624
Common stock, shares outstanding 11,062,188 1,205,624
Series B preferred stock
    
Temporary equity, par value   $ 0.00001
Temporary equity, shares authorized   17,065,217
Temporary equity, shares issued   9,782,609
Temporary equity, shares outstanding   9,782,609
Series C preferred stock
    
Temporary equity, par value   $ 0.00001
Temporary equity, shares authorized   16,798,924
Temporary equity, shares issued   11,072,239
Temporary equity, shares outstanding   11,072,239
Series D preferred stock
    
Temporary equity, par value   $ 0.00001
Temporary equity, shares authorized   67,000,000
Temporary equity, shares issued   30,156,259
Temporary equity, shares outstanding   30,156,259
Series A preferred stock
    
Preferred stock, par value   $ 0.00001
Preferred stock, shares authorized   2,544,750
Preferred stock, shares issued   2,544,750
Preferred stock, shares outstanding   2,544,750