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Redeemable Convertible Preferred Stock (Details 1) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Balance as of January 1, 2014     $ 76,236  
Decrease of fair value 1,564 245 (9,951) (36,955)
Ending balance as of September 30, 2014 $ 66,285   $ 66,285