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SHAREHOLDERS' EQUITY (Details 3) (USD $)
 12 Months Ended
Apr. 30, 2014
Apr. 30, 2013
Number of Warrants, Common Stock Warrants Outstanding Beginning Balance 2,274,796 0
Number of Warrants, Warrants issued in connection with Notes   2,274,796
Number of Warrants, Warrants exchanged in connection with the Amendment (154,961)  
Number of Warrants, Exchange Warrants issued in connection with the Amendment 154,961  
Number of Warrants, BTX Warrants issued in connection with the BTX Purchase Agreement 1,500,000  
Number of Warrants, Common Stock Warrants Outstanding Ending Balance 3,774,796 2,274,796
Weighted Average Exercise Price, Common Stock Warrants Outstanding Beginning Balance $ 2.1539 $ 0
Weighted Average Exercise Price, Warrants issued in connection with Notes   $ 2.1539
Weighted Average Exercise Price, Warrants exchanged in connection with the Amendment $ 2.1539  
Weighted Average Exercise Price, Exchange Warrants issued in connection with the Amendment $ 2.1539  
Weighted Average Exercise Price, BTX Warrants issued in connection with the BTX Purchase Agreement $ 5.0000  
Weighted Average Exercise Price, Common Stock Warrants Outstanding Ending Balance $ 3.2849 $ 2.1539
Weighted Average Remaining Life in years, Common Stock Warrants Contractual Term   0 years
Weighted Average Remaining Life in years, Warrants issued in connection with Notes   5 years
Weighted Average Remaining Life in years, Common Stock Warrants Contractual Term   4 years 6 months
Weighted Average Remaining Life in years, Warrants exchanged in connection with the Amendment 0 years  
Weighted Average Remaining Life in years, Exchange Warrants issued in connection with the Amendment 3 years 7 months 6 days  
Weighted Average Remaining Life in years, BTX Warrants issued in connection with the BTX Purchase Agreement 4 years  
Weighted Average Remaining Life in years, Common Stock Warrants Contractual Term 4 years 4 days