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Redeemable Convertible Preferred Stock and Conversion Feature Liability (Tables)
9 Months Ended
Sep. 30, 2016
Temporary Equity Disclosure [Abstract]  
Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block]
The table below shows the quantitative information about the significant unobservable inputs used in the fair value measurement of level 3 conversion feature liability:
 
 
 
September 30, 2016
 
 
 
(unaudited)
 
 
 
 
 
 
Expected remaining life of the redemption in years
 
 
1.0
 
Risk free interest rate
 
 
0.59
%
Expected annual volatility
 
 
77.70
%
Annual rate of dividends
 
 
0
%
Schedule of Derivative Liabilities at Fair Value [Table Text Block]
The changes in the fair value of the derivative are as follows:
 
Balance as of January 1, 2016
 
$
76,343
 
Decrease of fair value
 
 
12,052
 
 
 
 
 
 
Ending balance as of September 30, 2016 (unaudited)
 
$
88,395