Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE LIABILITIES (Details Textual)

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DERIVATIVE LIABILITIES (Details Textual) (USD $)
1 Months Ended 6 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Oct. 25, 2013
Oct. 31, 2013
Apr. 30, 2013
Oct. 31, 2013
After Amendment [Member]
Oct. 31, 2013
Common Stock Warrant [Member]
Oct. 31, 2013
Common Stock Warrant [Member]
Oct. 31, 2013
Senior Secured Convertible Notes [Member]
Oct. 31, 2013
Senior Secured Convertible Notes [Member]
Oct. 31, 2013
Senior Secured Convertible Warrants [Member]
Debt Instrument, Convertible, Conversion Price   $ 2.1539   $ 0.20 $ 2.1539 $ 2.1539 $ 0.20 $ 0.20  
Fair Value Assumptions, Risk Free Interest Rate       1.07%   1.31%   0.08%  
Fair Value Assumptions, Expected Term       5 years   5 years   1 year 6 months  
Fair Value Assumptions, Expected Volatility Rate       138.20%   81.00%   134.00%  
Share Price       $ 2.17 $ 2.07 $ 2.07 $ 2.07 $ 2.07  
Derivative liability - senior secured convertible notes   $ 0 $ 3,088,756            
Derivative liability - warrants   0 3,858,508            
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net         2,269,563 764,786 61,408 1,598,537  
Debt Instrument, Repurchase Amount             10,900,000 10,900,000  
Reclassification of derivative liabilities to additional paid-in capital               (4,000,437) (3,093,722)
Fair Value Adjustment of Warrants   72,832              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 154,961 154,961              
Fair Value Assumptions, Exercise Price       $ 2.1539          
Fair Value Assumptions, Risk Free Interest Rate       1.07%   1.31%   0.08%  
Fair Value Assumptions, Expected Term       5 years   5 years   1 year 6 months  
Fair Value Assumptions, Expected Dividend Rate       0.00%          
Fair Value Assumptions, Expected Volatility Rate       138.20%   81.00%   134.00%  
Share Price       $ 2.17 $ 2.07 $ 2.07 $ 2.07 $ 2.07  
Stock Issued During Period, Shares, Conversion of Convertible Securities 38,740 38,740              
Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments, Total   $ 88,715              
Class Of Warrants Or Rights Exercise Price Of Warrants Or Rights   $ 2.29