Quarterly report pursuant to Section 13 or 15(d)

Preferred Stock (Details Textual)

v3.2.0.727
Preferred Stock (Details Textual) - USD ($)
 6 Months Ended
Feb. 13, 2015
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Class of Stock [Line Items]        
Preferred Stock, Shares Authorized   10,000,000   10,000,000
Preferred Stock, Conversion Basis   All outstanding shares of Series A, B, C and D preferred stock automatically converted to common stock immediately upon the closing of the Companys initial public offering in February 2015 at the conversion rates of 1:0.251, 1:0.091, 1:0.091, and 1:0.091, respectively.    
Stock Issued During Period, Value, New Issues   $ 4,099,500    
Convertible Preferred Stock Discount Rate At Initial Public Offering Price   30.00%    
Dividends, Preferred Stock   $ 8,222,000    
Conversion of Stock, Amount Issued   $ 3,532,694    
Debt Conversion Original Debt Discount Rate At Initial Public Offering Price   30.00%    
Debt Instrument, Convertible, Beneficial Conversion Feature   $ (1,663,873) $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period   23,075    
Stock Issued During Period, Value, Stock Options Exercised   $ 14,948    
IPO [Member]        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues 683,250      
Stock Issued During Period, Value, New Issues $ 2,700,000      
Common Stock [Member]        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues   683,250    
Stock Issued During Period, Value, New Issues   $ 6,833    
Stock Issued During Period, Shares, Conversion of Convertible Securities   4,567,782    
Conversion of Stock, Amount Issued   $ 8,660    
Conversion of Stock, Shares Issued   866,056    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period   23,075    
Stock Issued During Period, Value, Stock Options Exercised   $ 231    
Common Stock [Member] | IPO [Member]        
Class of Stock [Line Items]        
Stock Issued During Period, Value, Stock Options Exercised   $ 14,948    
Series A Convertible Preferred Stock [Member]        
Class of Stock [Line Items]        
Preferred Stock, Shares Authorized   2,483,692    
Stock Issued During Period, Shares, Conversion of Convertible Securities   (2,483,692)    
Series B Convertible Preferred Stock [Member]        
Class of Stock [Line Items]        
Preferred Stock, Shares Authorized   13,819,649    
Stock Issued During Period, Shares, Conversion of Convertible Securities   (8,073,508)    
Series C Convertible Preferred Stock [Member]        
Class of Stock [Line Items]        
Preferred Stock, Shares Authorized   5,161,241    
Stock Issued During Period, Shares, Conversion of Convertible Securities   (3,351,156)    
Series D Convertible Preferred Stock [Member]        
Class of Stock [Line Items]        
Preferred Stock, Shares Authorized   29,020,554    
Stock Issued During Period, Shares, Conversion of Convertible Securities   (19,557,392)