Quarterly report pursuant to sections 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v2.4.0.8
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Mar. 31, 2014
Dec. 31, 2013
Condensed Consolidated Balance Sheets [Abstract]    
Common stock, par value per share $ 0.001 $ 0.001
Common stock, shares authorized 500,000,000 40,000,000
Common stock, shares issued 78,480,019 21,114,783
Common stock, shares outstanding 78,480,019 21,114,783
Convertible preferred stock, par value per share $ 0.001 $ 0.001
Convertible preferred stock, shares authorized 10,000,000 22,000,000
Convertible preferred stock, shares issued 0 25,923,873
Convertible preferred stock, shares outstanding 0 25,923,873
Minimum [Member]
   
Statement [Line Items]    
Convertible preferred stock, liquidation preference per share    $ 2.85
Maximum [Member]
   
Statement [Line Items]    
Convertible preferred stock, liquidation preference per share    $ 4.11